blue.
Developed by Lucian Hardner · Published by Lucian Hardner
At a glance
Overview
A casual, free to play, indie game by Lucian Hardner, published by Lucian Hardner — single-player.
Steam’s own one-line description: “blue. is the part puzzle game, part visual novel, story of a young cubie growing up in a colorful mined out world of gems. Play as Violet through their adolescence, meet their friends and family and learn about the Cubie world. And most of all learn when it takes to succeed in this underground place.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for blue..
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | No |
| Steam Achievements | No |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS *: Windows XP SP2+
- Processor: SSE2 instruction set support
- Memory: 110 MB RAM
- Graphics: DX9 (shader model 3.0) or DX11 with feature level 9.3 capabilities
- Storage: 110 MB available space
- Sound Card: N/A
Supported languages (1)
blue. FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is blue.?
Steam classifies blue. as a Casual, Free To Play, Indie game, developed by Lucian Hardner. blue. is the part puzzle game, part visual novel, story of a young cubie growing up in a colorful mined out world of gems. Play as Violet through their adolescence, meet their friends and family and learn about the Cubie world. And most of all learn when it takes to succeed in this underground place.
Is blue. free to play?
Yes — Steam lists blue. as Free to Play.
Is blue. single-player or multiplayer?
Steam lists these modes for blue.: Single-player. It lists a single-player mode.
Is blue. on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists blue. for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is blue. out yet?
Yes — Steam lists a release date of Mar 21, 2018.
What platforms is blue. on?
blue. is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is blue. single-player or multiplayer?
Steam lists these modes: Single-player.
How much does blue. cost?
It's free to play, per Steam.
Who made blue.?
blue. is developed by Lucian Hardner and published by Lucian Hardner.
Where to get blue.
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data. Not affiliated with Valve/Steam, Lucian Hardner.