Lemma is a Action, Adventure game from Helvetica Scenario with a 84% positive Steam review signal. Indie Lantern indexes it for players browsing by single-player.

Game snapshot
- Developer
- Helvetica Scenario
- Release year
- 2015
- Playtime
- Varies by player
- Price
- $14.99
- Review signal
- 84% positive
Screenshots






System requirements
PC
- Minimum
- OS *: Windows Vista
Processor: Dual core
Memory: 2 GB RAM
Graphics: 1 GB Video RAM, Shader Model 3
DirectX: Version 9.0c
Storage: 1 GB available space - Recommended
- OS *: Windows 8.1
Processor: Quad core
Memory: 4 GB RAM
Graphics: 2 GB Video RAM, Shader Model 3
DirectX: Version 9.0c
Storage: 4 GB available space
Additional Notes: Best experienced with a controller and Oculus Rift!
From Steam reviews
Review notes
Lemma is worth a closer look if you want exploration, strong atmosphere, narrative mystery, and replayable.
Best for players who want strong atmosphere, exploration, narrative mystery, and replayable.
Check more carefully if you dislike unclear onboarding and technical roughness.
exploration
Play styleThe draw is moving through spaces, discovering details, and learning the world.
strong-atmosphere
ToneThe mood, place, and presentation carry a lot of the experience.
confusing-onboarding
FrictionThe first hours can be unclear without patience or outside help.
narrative-mystery
Play styleA useful part of the game is piecing together mystery and story threads.
replayable
FitThe structure gives reasons to return rather than finish once.
buggy
FrictionTechnical roughness or instability comes up often enough to check.
controller-friendly
FitController, gamepad, or Steam Deck play comes up as a plus.
narrative-adventure
Play styleThe experience is more story-and-place driven than systems-heavy.
Steam review snapshots
Look up a guide, watch a playthrough, resign yourself to 5 hours of misery out of a 6 hour initial playthrough, do…Due to the real lack of asset variety within the bulk of the levels, with no map apart from a vague scribble…The sound library for BGM and ambience kind of sucks, and you're probably better off just putting on your own music, but…One of the cons of this game is that somtimes it can get so confusing on where you're supposed to go it's…Why it fits
Check it if you want action, adventure filtered by single-player.
Who might skip it
Research further on Steam if you need verified accessibility details, exact playtime, or current system requirements.