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Sigma Impact
A physics-based 2D action roguelite set in a dungeon of glass. Master intense combat, be immersed in captivating visuals with adaptive music and sound design tailored to your gameplay.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28.
“♥♥♥♥♥♥♥♥♥. I've actually found gold. ts has me more addicted than some AAA games I own. I can't believe it only has 90 reviews. I'm so addicted to it holy crap! Haven't felt this way since Balatro!”
— a player, Steam review · 14 hrs playedAchievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Small Bugfix Patch
Fixed a problem that was causing a draw event error message for some players.
Sigma Impact Update
It's out! There's still so much I want to add/tweak but the Winter sale is a good time to find a stopping place and put this thing out. Thanks again to everyone for playing this thing along with me, a
Autumn Sale - 33% Off!
Hey, I realized I forgot to sign up for the Autumn Sale on time. If you bought the game at full price, thank you!!! But to make it up, if you bought the game during the sale at full price let me know
Looking for testers for new update! Discord server back up!
Hi! Sorry for such a long wait, but the update I've been working on since release is finally ready to open up for public testing. You can find it in the Betas tab of the game properties in Steam. If y
Sigma Impact Testing Branch Available
Just wanted to give a little update on my progress and announce that I've added a test branch if anyone would like to try the latest build. The only new things in the test branch are some big visual u
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-28.
| Genres | Action, Indie |
| Player tags | Action Roguelike · Rogue-lite · PvP · Tutorial · Arcade · 2D · Top-Down · Controller · Linear · Music-Based Procedural Generation · Procedural Generation · Action (SteamSpy community voting) |
| Features | Single-player · Multi-player · PvP · Shared/Split Screen PvP · Co-op · Shared/Split Screen Co-op · Shared/Split Screen · Steam Achievements |
| Languages | English |
| Controller | Full support |
| Achievements | 16 |
Minimum system requirements (PC)
Minimum: OS *: Windows 7, 8 or 10 x64 Processor: Intel or AMD Dual Core CPU Memory: 512 MB RAM Graphics: (Integrated): Intel HD Graphics or AMD (formerly ATI) Radeon HD Graphics (Discrete): Nvidia GeForce 9600 GT or AMD Radeon HD 2400 DirectX: Version 9.0 Storage: 64 MB available space