Choose AO Tennis 2
Choose AO Tennis 2 if you want the Shared/Split Screen, Steam Leaderboards, and Shared/Split Screen PvP side of the pairing. On Steam, it has co-op, so you can bring a friend. AO Tennis 2 launched in 2020.
AO Tennis 2 vs Tennis Online Duel
AO Tennis 2 and Tennis Online Duel both land in Sports 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 are Sports games on Steam. AO Tennis 2 (2020) is 3 years older than Tennis Online Duel (2023). Tennis Online Duel is currently ~80% cheaper on Steam than AO Tennis 2 (1.99 USD vs. 9.99 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 Tennis Online Duel
Choose Tennis Online Duel if you want an Action, Indie, and Simulation experience. On Steam, it's currently about 80% cheaper on the Steam Store. Tennis Online Duel launched in 2023.
Both AO Tennis 2 and Tennis Online Duel sit in Sports on Steam and both list Multi-player, Online PvP, and 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
 AO Tennis 2 |  Tennis Online Duel | |
|---|---|---|
| Released | 2020 | 2023 |
| Genres | Sports | Action, Sports, Indie, Simulation |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 9.99 USD | 1.99 USD |
| Steam reviews | 68.1% positive (376 reviews) | 2 reviews |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Multi-player |
| Developers | Big Ant Studios | DoctorMouse Games |
Side by side
- Both are Sports games on Steam.
- AO Tennis 2 (2020) is 3 years older than Tennis Online Duel (2023).
- Tennis Online Duel is currently ~80% cheaper on Steam than AO Tennis 2 (1.99 USD vs. 9.99 USD).
- AO Tennis 2 has co-op; Tennis Online Duel does not.
- AO Tennis 2 is Deck Playable on Steam Deck; Tennis Online Duel has no Deck rating yet.
AO Tennis 2 vs Tennis Online Duel — FAQ
- Should I play AO Tennis 2 or Tennis Online Duel first?
- If you want chronology, AO Tennis 2 (2020) came out before Tennis Online Duel (2023). 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 AO Tennis 2 and Tennis Online Duel similar?
- They overlap on Sports 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.
- Does AO Tennis 2 run on Steam Deck?
- Yes — AO Tennis 2 is rated Deck Playable by Valve. Tennis Online Duel doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.