Choose Impossiball
Choose Impossiball if you want an Action experience. On Steam, it's currently about 83% cheaper on the Steam Store. Impossiball launched in 2017.
Impossiball vs Casual Sport Series: Tennis
Impossiball and Casual Sport Series: Tennis both land in Sports, Indie, 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 Sports, Indie, Casual on Steam. Impossiball (2017) is 8 years older than Casual Sport Series: Tennis (2025). Impossiball is currently ~83% cheaper on Steam than Casual Sport Series: Tennis (0.99 USD vs. 5.99 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 Casual Sport Series: Tennis
Choose Casual Sport Series: Tennis if it's the newer release (2025) and ships with the modern feature baseline. Casual Sport Series: Tennis launched in 2025.
Both Impossiball and Casual Sport Series: Tennis sit in Sports, Indie, and Casual 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
 Impossiball |  Casual Sport Series: Tennis | |
|---|---|---|
| Released | 2017 | 2025 |
| Genres | Action, Sports, Indie, Casual | Sports, Indie, Casual |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 0.99 USD | 5.99 USD |
| Steam reviews | 88.9% positive (27 reviews) | 7 reviews |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Dark Duo Games | Revulo Games |
Side by side
- Both share Sports, Indie, Casual on Steam.
- Impossiball (2017) is 8 years older than Casual Sport Series: Tennis (2025).
- Impossiball is currently ~83% cheaper on Steam than Casual Sport Series: Tennis (0.99 USD vs. 5.99 USD).
- Both support cooperative play.
- Impossiball is Deck Verified on Steam Deck; Casual Sport Series: Tennis has no Deck rating yet.
Impossiball vs Casual Sport Series: Tennis — FAQ
- Should I play Impossiball or Casual Sport Series: Tennis first?
- If you want chronology, Impossiball (2017) came out before Casual Sport Series: Tennis (2025). 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 Impossiball and Casual Sport Series: Tennis similar?
- They overlap on Sports, Indie, 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.
- Do both Impossiball and Casual Sport Series: Tennis have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Impossiball ships Shared/Split Screen Co-op, Co-op; Casual Sport Series: Tennis ships Shared/Split Screen Co-op, Co-op.
- Does Impossiball run on Steam Deck?
- Yes — Impossiball is rated Deck Verified by Valve. Casual Sport Series: Tennis doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.