Choose UpGun
Choose UpGun if you want a Casual game with Steam Leaderboards, LAN PvP, and HDR available. On Steam, it's free to play, so the barrier to trying it is zero. 2,486 Steam reviews back the pick.
UpGun vs World Boss
UpGun and World Boss both land in Action 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 Action games on Steam. UpGun (2021) is 2 years older than World Boss (2023). UpGun is free; World Boss is paid (Price unknown). 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 World Boss
Choose World Boss if you want a Free To Play experience. World Boss launched in 2023.
Both UpGun and World Boss sit in Action 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
 UpGun |  World Boss | |
|---|---|---|
| Released | 2021 | 2023 |
| Genres | Action, Casual | Action, Free To Play |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | Free to play | Price unknown |
| Steam reviews | 83.1% positive (2,486 reviews) | 6 reviews |
| Multiplayer | Multi-player | Multi-player |
| Developers | MaxEstLa, Zino | PlaySide |
Side by side
- Both are Action games on Steam.
- UpGun (2021) is 2 years older than World Boss (2023).
- UpGun is free; World Boss is paid (Price unknown).
- UpGun is Deck Playable on Steam Deck; World Boss has no Deck rating yet.
UpGun vs World Boss — FAQ
- Should I play UpGun or World Boss first?
- If you want chronology, UpGun (2021) came out before World Boss (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 UpGun and World Boss similar?
- They overlap on Action 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.
- Is UpGun free?
- Yes — UpGun is a free-to-play Steam title. World Boss is paid (Price unknown).
- Does UpGun run on Steam Deck?
- Yes — UpGun is rated Deck Playable by Valve. World Boss doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.