Choose Horde Arena
Choose Horde Arena if you want the Custom Volume Controls side of the pairing. Horde Arena launched in 2026.
Horde Arena vs Assembly Run
Horde Arena and Assembly Run 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. Both support cooperative play. 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 Assembly Run
Choose Assembly Run if you want the Steam Leaderboards, Online PvP, and PvP side of the pairing.
Both Horde Arena and Assembly Run sit in Action and Indie on Steam and both list Multi-player, Online Co-op, and Stereo Sound, 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
 Horde Arena |  Assembly Run | |
|---|---|---|
| Released | 2026 | — |
| Genres | Action, Indie | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | FiveFiveSix Games | Spare Rocket |
Side by side
- Both share Action, Indie on Steam.
- Both support cooperative play.
Horde Arena vs Assembly Run — FAQ
- Are Horde Arena and Assembly Run 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 Horde Arena and Assembly Run have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Horde Arena ships Online Co-op, Co-op; Assembly Run ships Online Co-op, Co-op.