IMHO.

SUM vs Afloat

SUM and Afloat both land in Adventure, Simulation, Casual 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 Adventure, Simulation, Casual on Steam. SUM (2018) is 1 year older than Afloat (2019). Afloat is currently ~57% cheaper on Steam than SUM (5.99 USD vs. 13.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Side-by-side comparison

SUM vs Afloat — Steam metadata comparison
SUM — Steam game coverSUMAfloat — Steam game coverAfloat
Released20182019
GenresIndie, Adventure, Simulation, Casual, Early AccessAdventure, Simulation, Casual, Early Access
PlatformsWindowsWindows
Steam DeckUnratedUnrated
Price13.99 USD5.99 USD
Steam reviews63.6% positive (11 reviews)3 reviews
MultiplayerSingle-player onlySingle-player only
DevelopersWeVeryBlue Atom Interactive

Side by side

SUM vs Afloat — FAQ

Should I play SUM or Afloat first?
If you want chronology, SUM (2018) came out before Afloat (2019). 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 SUM and Afloat similar?
They overlap on Adventure, Simulation, Casual 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.
SUM vs Afloat — comparison & verdict · imho.run