Choose Horrors of Space
Choose Horrors of Space if you want the Multi-player, Online Co-op, and Tracked Controller Support side of the pairing. On Steam, it has co-op, so you can bring a friend. Horrors of Space launched in 2022.
Horrors of Space vs HellDay
Horrors of Space and HellDay both land in Action, Indie, Adventure 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, Adventure on Steam. Horrors of Space has co-op; HellDay does not. 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 HellDay
Choose HellDay if it's a focused single-player run rather than a multiplayer commitment.
Both Horrors of Space and HellDay sit in Action, Indie, and Adventure 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
 Horrors of Space |  HellDay | |
|---|---|---|
| Released | 2022 | — |
| Genres | Action, Indie, Adventure, Early Access | Action, Indie, Adventure, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 2.99 USD | Price unknown |
| Steam reviews | 60% positive (15 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Single-player only |
| Developers | JMN | Red Tri Studios |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Horrors of Space has co-op; HellDay does not.
Horrors of Space vs HellDay — FAQ
- Are Horrors of Space and HellDay similar?
- They overlap on Action, Indie, Adventure 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.
- Does HellDay have multiplayer like Horrors of Space?
- No. Horrors of Space supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while HellDay is listed as single-player only.