# 20 Helsinki app ideas

Research checked 26 September 2026. Unbuilt proposals; market demand and partnerships are not established. Quest performance statements are estimates.

Browse the complete library: https://build.nebulytic.com/quest-library/#helsinki


## 1. Helsinki Time Windows

MR / VR · Culture & discovery · Medium relative scope

**Verified local detail:** Helsinki City Museum publishes historical photographs through Helsinkiphotos and Finna; the city also provides downloadable 3D models.

**Proposal:** Place a miniature Helsinki street on your table. Slide a date wheel to reveal archival views and reconstructed changes, then step into a seated VR viewpoint. Begin with one block around Senate Square rather than an entire historical city.

**Audience:** Residents, visitors, schools and museum audiences.

**First prototype:** Five verified photographs, one simplified block, three time layers, and a short narrated story with uncertainty marked on reconstructed geometry.

**Rendering/platform:** Conditional 72 FPS target: retopologize the city mesh, bake textures and load only one block. Archive planes and simplified buildings are cheaper than a full detailed city.

**Starting code:** MR Utility Kit Samples, First Hand

**Business hypothesis:** A museum or tourism pilot; optional paid neighborhood story packs. Demand and partner interest remain untested.

**Dependency:** Check each photograph's rights and attribution. Historical reconstructions require research; a modern city mesh cannot supply missing past buildings.

**Sources:** [City Museum collections](https://www.helsinginkaupunginmuseo.fi/en/collections-collection-services/), [Helsinki 3D and licensing](https://www.hel.fi/en/decision-making/information-on-helsinki/maps-and-geospatial-data/helsinki-3d)


## 2. Kalasatama on the Table

MR · Design & civic tools · Medium relative scope

**Verified local detail:** Helsinki's urban data model supplies buildings and terrain; the city has developed digital-twin work around Kalasatama.

**Proposal:** A shared planning table where people move proposed benches, trees, paths and play areas through one small neighborhood. Compare two proposals at real scale, then switch to an eye-level view.

**Audience:** Design studios, housing companies and neighborhood workshops.

**First prototype:** One block, ten editable prop types, before/after views and a screenshot export. Start with one headset and a mirrored browser view.

**Rendering/platform:** Practical target with simplified opaque buildings and instanced props; large photogrammetry exports need conversion and culling.

**Starting code:** MR Utility Kit Samples, Discover

**Business hypothesis:** Charge for a configured workshop or organization license rather than relying initially on consumer headset purchases.

**Dependency:** The official city model is a context layer, not a current construction survey. Proposed changes need their own clearly distinguished layer.

**Sources:** [Helsinki 3D](https://www.hel.fi/en/decision-making/information-on-helsinki/maps-and-geospatial-data/helsinki-3d), [Digital twin for mobility working paper](https://testbed.hel.fi/wp-content/uploads/2025/01/digital-twin-for-mobilty-working-paper-v2-1124.pdf)


## 3. Sun on Our Building

MR / Web · Design & civic tools · Medium relative scope

**Verified local detail:** Helsinki's Energy and Climate Atlas includes estimated solar potential for roofs and walls, alongside building and energy information.

**Proposal:** Put your housing block on a table and move a month slider to explore its solar-energy pattern. Compare facade and roof surfaces, then save a plain-language discussion sheet for a housing-company meeting.

**Audience:** Housing-company boards, residents and energy educators.

**First prototype:** One building, twelve monthly states and a clear legend separating source estimates from any calculations added by the app.

**Rendering/platform:** Practical target using color-coded opaque surfaces. Simulate sunlight direction cheaply; avoid real-time global illumination.

**Starting code:** MR Utility Kit Samples, Discover

**Business hypothesis:** An explanatory tool sold to energy advisers or housing-company service providers; no payback or savings guarantee.

**Dependency:** Annual/monthly solar-energy estimates are not live weather, a room-level daylight study or a structural approval for panels.

**Sources:** [Energy and Climate Atlas description](https://www.hel.fi/en/decision-making/information-on-helsinki/maps-and-geospatial-data/helsinki-3d)


## 4. Visit It Before You Go

VR / Web · Everyday life & access · Medium relative scope

**Verified local detail:** The Service Map API exposes entrance and accessibility information for city service locations.

**Proposal:** Rehearse a visit to one library or public service building: find the entrance, lift, counter, quiet waiting spot and exit. Let the visitor choose seated height, slower narration and a step-by-step route.

**Audience:** People who benefit from advance orientation, including wheelchair users and visitors unfamiliar with a venue.

**First prototype:** One venue, three routes and staff-verified entrance facts. Use a browser version for visitors without a headset.

**Rendering/platform:** Conditional target with a bounded interior, baked light and teleport points. Readable landmarks matter more than photographic detail.

**Starting code:** First Hand, Discover

**Business hypothesis:** Venue-funded orientation packages with a maintenance agreement for changes.

**Dependency:** Service Map metadata does not contain a complete indoor 3D model. Obtain capture permission and verify routes with the venue and intended users.

**Sources:** [Service Map API fields](https://www.hel.fi/palvelukarttaws/restpages/ver4.html), [Service Map reuse terms](https://www.hel.fi/palvelukarttaws/restpages/index_en.html)


## 5. Tram Table Helsinki

MR · Games & creative play · Medium relative scope

**Verified local detail:** HSL publishes routes, stops, timetables and real-time service data through its open-data channels.

**Proposal:** A toy city transport game: build connections, send miniature trams through Helsinki and recover from authored disruptions. Real route shapes give it local identity; playful passenger goals supply the game.

**Audience:** Transport enthusiasts, families and strategy-game players.

**First prototype:** Three simplified routes, six stops and ten short scenarios. Use an attributed static data snapshot first.

**Rendering/platform:** Practical target with pooled vehicles, shared materials and capped passenger simulation. Do not simulate the entire network initially.

**Starting code:** Meta XR Tabletop Games, Spirit Sling Tabletop

**Business hypothesis:** A paid game with optional district packs; test whether the scheduling loop is fun before expanding coverage.

**Dependency:** HSL data attribution and OSM-derived geometry obligations are separate. Create original vehicle art and avoid implying HSL endorsement.

**Sources:** [HSL open data and terms](https://www.hsl.fi/en/hsl/open-data)


## 6. My First Helsinki Conversation

VR / MR · Learning & skills · Medium relative scope

**Verified local detail:** Helsinki supports language cafés, while Arbis offers Swedish-language adult education and community activities.

**Proposal:** Practise short everyday exchanges in a Helsinki tram stop, café or library. The scene changes as you speak or select a phrase. Offer Finnish and Swedish learning paths with English explanations.

**Audience:** New residents, language learners and adult-education providers.

**First prototype:** Three situations and twenty locally reviewed exchanges. Include selectable dialogue before adding open-ended speech recognition.

**Rendering/platform:** Practical target with a small set and one or two stylized characters. Keep remote speech processing off the rendering thread.

**Starting code:** Spatial Lingo, First Hand

**Business hypothesis:** Lesson packs or an adult-education pilot, with content reviewed by language teachers.

**Dependency:** Use native-speaker review for Finnish and Swedish pronunciation and register. It supplements real conversation; it does not issue proficiency certification.

**Sources:** [Helsinki language cafés](https://vapaaehtoistoiminta.hel.fi/en/tasks/language-cafe-instructor/), [About Arbis](https://arbis.hel.fi/en/about-arbis/)


## 7. Oodi Maker Dry Run

VR / MR · Learning & skills · Small relative scope

**Verified local detail:** Oodi's Urban Workshop offers shared equipment including 3D printers and sewing machines; reservations and device instructions are provided through Varaamo.

**Proposal:** Practise preparing a simple project before a workshop visit. Put the steps in order, choose the correct material, inspect a virtual print or stitch, and learn when to ask staff for help.

**Audience:** First-time makers, libraries and education providers.

**First prototype:** One 3D-print preparation lesson with eight actions and a short knowledge check; no connection to a real machine.

**Rendering/platform:** Practical target: one workbench and a few inspectable parts. Precise interaction feedback matters more than a full library reconstruction.

**Starting code:** First Hand, Discover

**Business hypothesis:** A paid instructional-content pilot for a library or maker organization, subject to their interest.

**Dependency:** Get equipment-specific instructions reviewed by staff. This is preparation, not authorization to operate machinery. Equipment availability must be checked in Varaamo.

**Sources:** [Oodi Urban Workshop](https://oodihelsinki.fi/en/services/urban-workshop/)


## 8. Helsinki Sound Loom

MR · Games & creative play · Small relative scope

**Verified local detail:** Oodi provides bookable music and voice-recording studios as part of its shared creative facilities.

**Proposal:** Compose a miniature Helsinki soundscape on your table: place original recordings of rain, steps, bells and water as colored musical objects. Stretch a ribbon to change rhythm and move objects to change spatial sound.

**Audience:** Musicians, youth workshops and people who enjoy creative sandbox apps.

**First prototype:** Twelve original or cleared sound samples, four tracks, tempo control and local audio export.

**Rendering/platform:** Practical target with a fixed number of sound objects and opaque ribbons; cap particles and reverb processing.

**Starting code:** Synth VR, theDAW XR, Open Brush

**Business hypothesis:** A paid creative app or commissioned local sound packs; compare usefulness against existing music tools.

**Dependency:** Record or license sounds independently. Do not assume station announcements, music heard in public, or archival recordings are reusable.

**Sources:** [Oodi studios and workshop services](https://oodihelsinki.fi/en/services/urban-workshop/)


## 9. Sort It, Helsinki

MR / Mobile · Learning & skills · Small relative scope

**Verified local detail:** HSY publishes its metropolitan-area Waste Guide as a JSON REST API under CC BY 4.0; API use requires registration.

**Proposal:** Place virtual household objects beside bins in your real room, then sort them with your hands. Explain difficult cases using current local guidance. A phone mode lets someone look up the same item later.

**Audience:** New residents, housing companies, schools and families.

**First prototype:** Twenty common household items, four to six waste categories and one five-minute challenge. Start with a dated, reviewed data cache.

**Rendering/platform:** Practical target with simple opaque props and a few bins; no camera recognition is needed for the first version.

**Starting code:** First Hand, MR Utility Kit Samples

**Business hypothesis:** Housing-company onboarding or school packages; the added value is practice, since the underlying lookup service already exists.

**Dependency:** Register for the API, preserve attribution and refresh the guidance. Build original branding; do not reuse HSY marks as your product identity.

**Sources:** [HSY Waste Guide API and license](https://www.hsy.fi/en/environmental-information/open-data/avoin-data---sivut/waste-guide-helsinki-metropolitan-region/)


## 10. Archipelago in Your Living Room

VR / MR · Culture & discovery · Medium relative scope

**Verified local detail:** Helsinki's island directory covers destinations such as Suomenlinna, Harakka and other archipelago locations.

**Proposal:** Unfold a small island collection on a table, choose one, and enter a calm seated scene. Compare coastlines, habitats and human uses; offer a companion list for planning a later physical visit.

**Audience:** Visitors, classrooms and people unable to reach the islands easily.

**First prototype:** Three authored island vignettes, one viewpoint each and short stories with a source list.

**Rendering/platform:** Conditional for realistic scenery; practical with painted islands, baked sky and simple water. Avoid a seamless fully detailed archipelago.

**Starting code:** MR Utility Kit Samples, Discover

**Business hypothesis:** Tourism partners or paid destination packs; test whether it motivates a visit or provides value independently.

**Dependency:** Island access, routes and seasonal transport change. Link current operator information instead of baking timetables into the app.

**Sources:** [Helsinki island directory](https://www.hel.fi/en/culture-and-leisure/outdoor-activities-parks-and-nature-destinations/islands/all-islands), [Arrival at Suomenlinna](https://suomenlinna.fi/en/explore/arriving/)


## 11. Suomenlinna Restoration Lab

MR / VR · Games & creative play · Medium relative scope

**Verified local detail:** The Governing Body of Suomenlinna manages a heritage area containing more than 200 buildings across eight islands.

**Proposal:** A cooperative conservation puzzle where players inspect a small wall or mechanism, identify a sequence of changes, and choose reversible repairs. The reward is understanding a real place rather than conquering a fortress.

**Audience:** Puzzle players, heritage educators and museum visitors.

**First prototype:** One fictionalized, historically informed wall section with three material layers and five restoration decisions.

**Rendering/platform:** Practical for a bounded object with baked materials and mesh-state swaps. Rich close-up surface detail can fit without rendering a whole fortress.

**Starting code:** First Hand, Discover

**Business hypothesis:** A paid puzzle or heritage-education commission; obtain specialist review for any factual restoration lesson.

**Dependency:** The heritage webpage supplies context, not reusable 3D assets. Create assets or arrange licensed capture. Clearly distinguish invented puzzles from documented history.

**Sources:** [Suomenlinna area and buildings](https://suomenlinna.fi/en/area-and-buildings/)


## 12. Listen to Viikki

VR · Learning & skills · Small relative scope

**Verified local detail:** Vanhankaupunginlahti is a significant nesting and migration area with birdwatching places, nature trails and an accessible boardwalk.

**Proposal:** A quiet bird-identification experience set in a stylized reed bed. Turn toward a call, compare silhouettes and discover how the scene changes with the season. Keep the headset experience indoors; use a simple phone checklist outdoors.

**Audience:** Nature learners, schools and birdwatching beginners.

**First prototype:** Six locally relevant species, cleared recordings, two seasonal scenes and a ten-minute listening lesson.

**Rendering/platform:** Practical with authored sightlines, instanced opaque reeds and a few animated birds. Dense alpha-tested foliage is the main rendering risk.

**Starting code:** First Hand, MR Motifs

**Business hypothesis:** Education packs or a calm paid nature app; verify species and seasons with local experts.

**Dependency:** License recordings and illustrations. Do not reveal sensitive nest locations or present synthetic calls as real field evidence.

**Sources:** [Vanhankaupunginlahti nature area](https://www.hel.fi/en/culture-and-leisure/outdoor-activities-parks-and-nature-destinations/outdoor-recreation-areas/vanhankaupunginlahti)


## 13. Helsinki Season Switch

Mobile / Web · Everyday life & access · Small relative scope

**Verified local detail:** The city's outdoor maps show seasonal information including ski-track and rink condition, beach water temperature, algae status and lifeguard schedules.

**Proposal:** A single personal shortlist that changes with the season: find an available winter trail or summer swimming spot within your travel-time budget. Always show when a condition report was updated.

**Audience:** Residents who regularly use outdoor facilities and visitors with limited planning time.

**First prototype:** Ten locations, two seasonal modes, official-source links and travel-time comparisons. Begin with read-only data and no accounts.

**Rendering/platform:** A phone is the useful first platform. An optional 3D route preview adds little until the freshness and filtering are reliable.

**Starting code:** A focused mobile/web app; no Unity dependency required.

**Business hypothesis:** Test demand for saved preferences or a local hospitality widget; core official information should remain clearly attributed.

**Dependency:** Confirm a documented feed and its license before ingesting it. Unknown or old conditions must stay visibly unknown; no ice-safety inference from weather alone.

**Sources:** [City map services and seasonal conditions](https://www.hel.fi/en/decision-making/information-on-helsinki/maps-and-geospatial-data), [Paloheinä and current trail information](https://www.hel.fi/en/culture-and-leisure/outdoor-activities-parks-and-nature-destinations/outdoor-recreation-areas/paloheina-outdoor-recreation-area)


## 14. Baltic Weather Weaving

MR · Learning & skills · Medium relative scope

**Verified local detail:** FMI's open-data services include weather, water-temperature and wave observations; its current data license is CC BY 4.0.

**Proposal:** Turn a tabletop coast into a weather lesson. Wind becomes ribbons, temperature becomes a color field and observations become movable markers. Compare a recorded calm day with a stormier one without pretending the model predicts local water conditions.

**Audience:** Science classes, visitor centres and curious residents.

**First prototype:** One coastal area, two historical snapshots and three variables. Keep observed data separate from an authored illustrative simulation.

**Rendering/platform:** Practical target with a capped ribbon mesh and simple water surface; no volumetric fluid or cloud simulation.

**Starting code:** MR Utility Kit Samples, MR Motifs

**Business hypothesis:** A classroom visualization license or exhibit commission, with a reusable lesson editor.

**Dependency:** Cache data within FMI request limits and show timestamps and station coverage. Educational visualization, not marine navigation or a safe-to-swim decision system.

**Sources:** [FMI data examples](https://en.ilmatieteenlaitos.fi/open-data-manual-wfs-examples-and-guidelines), [FMI current license and limits](https://www.ilmatieteenlaitos.fi/avoin-data-lisenssi)


## 15. Snow Shift Helsinki

MR / Web · Games & creative play · Medium relative scope

**Verified local detail:** Helsinki prioritizes main streets and busy public-transport, walking and cycling routes during snow removal; responsibilities are divided between the city and properties.

**Proposal:** A small logistics game about keeping a neighborhood usable through a snow event. Allocate limited ploughs and grit, balance competing routes, and see which people can still reach essential services.

**Audience:** Strategy players, schools and civic workshops.

**First prototype:** One fictionalized district, three route classes, two vehicle types and five authored snow scenarios.

**Rendering/platform:** Practical target with low-poly snow states and lightweight route simulation. Do not use deformable snow across an entire city.

**Starting code:** Meta XR Tabletop Games, Spirit Sling Tabletop

**Business hypothesis:** A paid simulation game or educational module. Its distinctive value is the trade-off, not a claim to predict municipal operations.

**Dependency:** Official maintenance targets are not live completion reports. Label invented scenarios and avoid presenting the game as an operational planning tool.

**Sources:** [Helsinki winter street maintenance](https://www.hel.fi/en/urban-environment-and-traffic/general-maintenance/street-maintenance/winter-street-maintenance)


## 16. Our Block, Our Budget

MR / Web · Design & civic tools · Medium relative scope

**Verified local detail:** OmaStadi's 2025–2026 round allocated €10 million; the official site now describes implementation of 54 projects selected in spring 2026.

**Proposal:** A shared neighborhood board where participants compare illustrative improvements, distribute a pretend budget and explain their choices. Export a visual proposal sheet for discussion outside the headset.

**Audience:** Neighborhood associations, schools and workshop facilitators.

**First prototype:** One park, six proposal cards and editable assumed costs. Provide the same controls in a browser for participants without a headset.

**Rendering/platform:** Practical target with a small board and limited props. Start single-user with a shared display before networked co-editing.

**Starting code:** Discover, Meta XR Tabletop Games

**Business hypothesis:** Paid facilitation software or customized workshops; no assumption that the city will purchase it.

**Dependency:** This is an independent discussion tool, not the official voting system. Costs are illustrative until supplied by a qualified project owner.

**Sources:** [OmaStadi current phase](https://omastadi.hel.fi/?locale=en), [City's fourth-round update](https://www.hel.fi/en/news/the-fourth-round-of-omastadi-participatory-budgeting-starts)


## 17. Two Hours in Helsinki

Mobile / Web · Culture & discovery · Small relative scope

**Verified local detail:** The city identifies Linked Events and Service Map as important tourism APIs; HSL supplies routing and timetable information.

**Proposal:** Plan a realistic two-hour outing from where you are: one suitable event or place, travel time and an indoor alternative. Filter by language, cost and available time instead of returning a long generic event list.

**Audience:** Residents after work, visitors between appointments and hotels assisting guests.

**First prototype:** One neighborhood, twenty candidate activities, travel-time estimates and a clear explanation for each suggestion. No ticket sales in the first version.

**Rendering/platform:** Start as a phone/web service. A headset is unnecessary for choosing an outing; an optional tabletop planner could follow only if useful.

**Starting code:** A focused mobile/web app; no Unity dependency required.

**Business hypothesis:** A hospitality widget or optional planning features. Existing event and journey planners are strong alternatives, so validate the combined workflow.

**Dependency:** Check event status, language and dates; preserve unknown fields. Event descriptions and photographs may have different reuse rights from API software.

**Sources:** [Helsinki tourism data](https://www.hel.fi/en/business-and-work/helsinki-tourism-and-event-data), [Linked Events source](https://github.com/City-of-Helsinki/linkedevents), [HSL open data](https://www.hsl.fi/en/hsl/open-data)


## 18. Rainy-Day Family Map

Mobile / Web · Everyday life & access · Small relative scope

**Verified local detail:** Helsinki lists more than 60 playgrounds and family houses, with location-specific programmes. Its 2024 playground guide also describes a discovery app.

**Proposal:** Find a workable outing around a child's age, nap window, toilet needs and weather. Combine indoor family-house activities with a nearby outdoor fallback, and show the source and update date for each amenity.

**Audience:** Parents and carers of young children, especially people new to an area.

**First prototype:** Ten locations in one district, manually verified amenity fields and a thirty-, sixty- or ninety-minute outing filter.

**Rendering/platform:** Phone first. A headset would add friction to an outing-planning task and is not needed for the initial product.

**Starting code:** A focused mobile/web app; no Unity dependency required.

**Business hypothesis:** Test a paid planning convenience or local-service partnership while keeping public-service facts easy to access.

**Dependency:** Check existing discovery services before building. Do not infer accessibility or indoor availability from missing data; confirm opening programmes with their source.

**Sources:** [Playground and family-house directory](https://www.hel.fi/en/childhood-and-education/playgrounds-and-family-houses/find-playgrounds-and-family-houses?page=1), [City playground guide and existing app](https://www.hel.fi/static/kasko/leikkipuistot/K24_Leikkipuistot_en_B5_verkko.pdf)


## 19. See the Air

MR / Web · Learning & skills · Small relative scope

**Verified local detail:** HSY publishes an hourly updated air-quality index at its measurement stations through open WMS/WFS services.

**Proposal:** A tabletop Helsinki map where each station becomes a visible column of observations. Scrub a day to compare locations and learn the difference between a measured point, missing data and an illustrative interpolation.

**Audience:** Schools, environmental exhibits and residents learning how air measurements work.

**First prototype:** Three stations, twenty-four hourly observations and two variables with plain-language explanations.

**Rendering/platform:** Practical target with opaque bars, labels and a low-detail map. Avoid large transparent particle clouds.

**Starting code:** MR Utility Kit Samples, Discover

**Business hypothesis:** Educational exhibits or reusable data-visualization modules; a browser edition broadens access.

**Dependency:** Station observations do not establish air quality on every street. Do not market inferred routes as medically safe or convert missing data into a clean-air rating.

**Sources:** [HSY real-time air-quality data](https://www.hsy.fi/en/environmental-information/open-data/avoin-data---sivut/real-time-air-quality-at-hsy-monitoring-sites-/), [HSY open interfaces](https://www.hsy.fi/en/environmental-information/geographic-information/geographic-information-interfaces/open-geographic-information-interfaces/)


## 20. Repair Before Replace

MR / Mobile · Everyday life & access · Medium relative scope

**Verified local detail:** Oodi offers sewing machines and small repair-related tools; HSY supplies local sorting and disposal guidance when an item cannot be reused.

**Proposal:** A decision-and-practice app for a torn garment or simple household item: learn an elementary repair on a virtual workbench, prepare a material list, then find the relevant public workshop or verified local provider.

**Audience:** Residents learning basic repair, housing communities and maker educators.

**First prototype:** Three non-electrical repairs, a few virtual practice steps and links to confirmed equipment/provider information. End with local disposal guidance where appropriate.

**Rendering/platform:** Practical target for a single workbench and a few tools. Represent sewing with authored states rather than a full cloth simulation.

**Starting code:** First Hand, Discover

**Business hypothesis:** Repair-class content or partner-funded onboarding. A useful provider directory needs actual participation; it is not supplied automatically by an open API.

**Dependency:** Have the tutorials reviewed and distinguish practice from real tool instruction. Verify workshop equipment availability; use only opted-in provider listings.

**Sources:** [Oodi Urban Workshop](https://oodihelsinki.fi/en/services/urban-workshop/), [HSY Waste Guide API](https://www.hsy.fi/en/environmental-information/open-data/avoin-data---sivut/waste-guide-helsinki-metropolitan-region/)