Choose Polybius Invaders
Choose Polybius Invaders if you want the Steam Leaderboards side of the pairing. Polybius Invaders launched in 2021.
Polybius Invaders vs Star Trapper FX
Polybius Invaders and Star Trapper FX 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. Polybius Invaders (2021) is 1 year older than Star Trapper FX (2022). Star Trapper FX is currently ~90% cheaper on Steam than Polybius Invaders (0.99 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 Star Trapper FX
Choose Star Trapper FX if it's currently about 90% cheaper on the Steam Store. Star Trapper FX launched in 2022.
Both Polybius Invaders and Star Trapper FX sit in Action and Indie on Steam, 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
 Polybius Invaders |  Star Trapper FX | |
|---|---|---|
| Released | 2021 | 2022 |
| Genres | Action, Indie | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 9.99 USD | 0.99 USD |
| Steam reviews | 4 reviews | 2 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Jonni the Dodger, Peter Ward | Marshall Games |
Side by side
- Both share Action, Indie on Steam.
- Polybius Invaders (2021) is 1 year older than Star Trapper FX (2022).
- Star Trapper FX is currently ~90% cheaper on Steam than Polybius Invaders (0.99 USD vs. 9.99 USD).
Polybius Invaders vs Star Trapper FX — FAQ
- Should I play Polybius Invaders or Star Trapper FX first?
- If you want chronology, Polybius Invaders (2021) came out before Star Trapper FX (2022). 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 Polybius Invaders and Star Trapper FX 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.