IMHO.

GONNER2 vs Sigma Impact

GONNER2 and Sigma Impact both land in Action, Indie on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Indie on Steam. GONNER2 (2020) is 1 year older than Sigma Impact (2021). Sigma Impact scores higher on Steam reviews (96.3% positive) than GONNER2 (66.7% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Which should you pick?

Choose GONNER2

Choose GONNER2 if it matches what drew you to this matchup. GONNER2 launched in 2020.

Choose Sigma Impact

Choose Sigma Impact if it's currently about 62% cheaper on the Steam Store. Sigma Impact launched in 2021.

Both GONNER2 and Sigma Impact sit in Action and Indie on Steam and both list Multi-player, Shared/Split Screen, and Shared/Split Screen PvP, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.

Side-by-side comparison

GONNER2 vs Sigma Impact — Steam metadata comparison
GONNER2 — Steam game coverGONNER2Sigma Impact — Steam game coverSigma Impact
Released20202021
GenresAction, IndieAction, Indie
PlatformsWindows, macOS, LinuxWindows
Steam DeckDeck VerifiedDeck Verified
Price12.99 USD4.99 USD
Steam reviews66.7% positive (63 reviews)96.3% positive (82 reviews)
MultiplayerMulti-player, Shared/Split Screen Co-op, Co-opMulti-player, Shared/Split Screen Co-op, Co-op
DevelopersArt in HeartJohn Bishop

Side by side

GONNER2 vs Sigma Impact — FAQ

Should I play GONNER2 or Sigma Impact first?
If you want chronology, GONNER2 (2020) came out before Sigma Impact (2021). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
Are GONNER2 and Sigma Impact similar?
They overlap on Action, Indie on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
Do both GONNER2 and Sigma Impact have co-op?
Yes — both list a co-op category on Steam. Specifics differ: GONNER2 ships Shared/Split Screen Co-op, Co-op; Sigma Impact ships Shared/Split Screen Co-op, Co-op.
Do GONNER2 and Sigma Impact both run on Steam Deck?
Yes — both are Steam Deck Verified, meaning Valve confirms they run with full controller support, legible text, and default settings out of the box.
GONNER2 vs Sigma Impact — Verdict (2026) · imho.run