Choose //N.P.P.D. RUSH//- The milk of Ultraviolet
Choose //N.P.P.D. RUSH//- The milk of Ultraviolet if it's currently about 60% cheaper on the Steam Store. //N.P.P.D. RUSH//- The milk of Ultraviolet launched in 2014.
//N.P.P.D. RUSH//- The milk of Ultraviolet vs Polybius Invaders
//N.P.P.D. RUSH//- The milk of Ultraviolet and Polybius Invaders 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. //N.P.P.D. RUSH//- The milk of Ultraviolet (2014) is 7 years older than Polybius Invaders (2021). //N.P.P.D. RUSH//- The milk of Ultraviolet is currently ~60% cheaper on Steam than Polybius Invaders (3.99 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 Polybius Invaders
Choose Polybius Invaders if you want the Steam Leaderboards side of the pairing. On Steam, it's the newer release (2021) and ships with the modern feature baseline. Polybius Invaders launched in 2021.
Both //N.P.P.D. RUSH//- The milk of Ultraviolet and Polybius Invaders 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
 //N.P.P.D. RUSH//- The milk of Ultraviolet |  Polybius Invaders | |
|---|---|---|
| Released | 2014 | 2021 |
| Genres | Action, Indie | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Deck Unsupported | Unrated |
| Price | 3.99 USD | 9.99 USD |
| Steam reviews | 38.1% positive (126 reviews) | 4 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Rail Slave Games | Jonni the Dodger, Peter Ward |
Side by side
- Both share Action, Indie on Steam.
- //N.P.P.D. RUSH//- The milk of Ultraviolet (2014) is 7 years older than Polybius Invaders (2021).
- //N.P.P.D. RUSH//- The milk of Ultraviolet is currently ~60% cheaper on Steam than Polybius Invaders (3.99 USD vs. 9.99 USD).
- //N.P.P.D. RUSH//- The milk of Ultraviolet is Deck Unsupported on Steam Deck; Polybius Invaders has no Deck rating yet.
//N.P.P.D. RUSH//- The milk of Ultraviolet vs Polybius Invaders — FAQ
- Should I play //N.P.P.D. RUSH//- The milk of Ultraviolet or Polybius Invaders first?
- If you want chronology, //N.P.P.D. RUSH//- The milk of Ultraviolet (2014) came out before Polybius Invaders (2021). 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 //N.P.P.D. RUSH//- The milk of Ultraviolet and Polybius Invaders 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.