Choose Gerty
Choose Gerty if you want a RPG experience. Gerty launched in 2019.
Gerty vs Ammo and Oxygen
Gerty and Ammo and Oxygen 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. Gerty (2019) is 6 years older than Ammo and Oxygen (2025). Gerty scores higher on Steam reviews (82.6% positive) than Ammo and Oxygen (68.8% 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 Ammo and Oxygen
Choose Ammo and Oxygen if you want the Custom Volume Controls, Stereo Sound, and Surround Sound side of the pairing. On Steam, it's the newer release (2025) and ships with the modern feature baseline. Ammo and Oxygen launched in 2025.
Both Gerty and Ammo and Oxygen sit in Action and Indie on Steam and both list Multi-player, Shared/Split Screen, and Shared/Split Screen Co-op, 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
 Gerty |  Ammo and Oxygen | |
|---|---|---|
| Released | 2019 | 2025 |
| Genres | Action, Indie, RPG | Action, Indie |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Unrated | Deck Playable |
| Price | 14.99 USD | 14.99 USD |
| Steam reviews | 82.6% positive (23 reviews) | 68.8% positive (16 reviews) |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Spawn Point OSK | Juvty Worlds |
Side by side
- Both share Action, Indie on Steam.
- Gerty (2019) is 6 years older than Ammo and Oxygen (2025).
- Gerty scores higher on Steam reviews (82.6% positive) than Ammo and Oxygen (68.8% positive).
- Ammo and Oxygen is currently ~0% cheaper on Steam than Gerty (14.99 USD vs. 14.99 USD).
- Both support cooperative play.
- Ammo and Oxygen is Deck Playable on Steam Deck; Gerty has no Deck rating yet.
Gerty vs Ammo and Oxygen — FAQ
- Should I play Gerty or Ammo and Oxygen first?
- If you want chronology, Gerty (2019) came out before Ammo and Oxygen (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 Gerty and Ammo and Oxygen 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 Gerty and Ammo and Oxygen have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Gerty ships Shared/Split Screen Co-op, Co-op; Ammo and Oxygen ships Shared/Split Screen Co-op, Co-op.