Choose Undead
Choose Undead if you want a Strategy, Adventure, and Massively Multiplayer game with Multi-player, MMO, and Online PvP. On Steam, it has co-op, so you can bring a friend. Undead launched in 2017.
Undead vs Dark Matter
Undead and Dark Matter 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. Undead (2017) is 1 year older than Dark Matter (2018). Dark Matter is free; Undead 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 Dark Matter
Choose Dark Matter if it's free to play, so the barrier to trying it is zero. Dark Matter launched in 2018.
Both Undead and Dark Matter 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
 Undead |  Dark Matter | |
|---|---|---|
| Released | 2017 | 2018 |
| Genres | Action, Strategy, Indie, Adventure, Massively Multiplayer | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Free to play |
| Steam reviews | 5 reviews | 43.8% positive (16 reviews) |
| Multiplayer | Multi-player, Online Co-op, Co-op | Single-player only |
| Developers | KNP | Barty Games |
Side by side
- Both share Action, Indie on Steam.
- Undead (2017) is 1 year older than Dark Matter (2018).
- Dark Matter is free; Undead is paid (Price unknown).
- Undead has co-op; Dark Matter does not.
Undead vs Dark Matter — FAQ
- Should I play Undead or Dark Matter first?
- If you want chronology, Undead (2017) came out before Dark Matter (2018). 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 Undead and Dark Matter 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.
- Does Dark Matter have multiplayer like Undead?
- No. Undead supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while Dark Matter is listed as single-player only.
- Is Dark Matter free?
- Yes — Dark Matter is a free-to-play Steam title. Undead is paid (Price unknown).