Choose SUM
Choose SUM if you want an Indie experience. SUM launched in 2018.
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.
Which should you pick?
Choose Afloat
Choose Afloat if it's currently about 57% cheaper on the Steam Store. Afloat launched in 2019.
Both SUM and Afloat sit in Adventure, Simulation, and Casual on Steam and both list Tracked Controller Support and VR Only, 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
 SUM |  Afloat | |
|---|---|---|
| Released | 2018 | 2019 |
| Genres | Indie, Adventure, Simulation, Casual, Early Access | Adventure, Simulation, Casual, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 13.99 USD | 5.99 USD |
| Steam reviews | 63.6% positive (11 reviews) | 3 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | WeVery | Blue Atom Interactive |
Side by side
- 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).
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.