Astra And The New Constellation
Travel the galaxy as Astra, a starlet on a mission, in this retro-inspired Pico-8 platformer!

Positive · 11 reviews
91% positive (10 / 11)









The discovery of non-Euclidean geometry has changed how we perceive the world... but geometry goes even more exotic than that! Games of various genres designed for Thurston and space-time geometries.
Released
August 26, 2025
Price
Platforms
Linux · Windows
Developer
Publisher
Last sync
September 25, 2026
RogueViz is a non-Euclidean geometry engine, originally designed for HyperRogue. While the setting of HyperRogue has proven to be extremely universal -- ascending from the original mind-bending 2D puzzle roguelike gameplay to experimental modes like 3D racing or first-person shooter -- some ideas still did not fit its world. Such games are included here!
The games in this collection are of various genres, but all of them are experiments on how non-Euclidean geometry can be used to create engaging gameplay. Note that we use "non-Euclidean" in the mathematical meaning of "curved space", which is more mind-bending than the mainstream meaning! The following games are included:
The three first games above are currently the only games specially designed for their respective geometries (H2xR, Nil, and (anti) de Sitter). The collection also includes smaller games and demos.