Choose Killer Instinct
Choose Killer Instinct if you want a Free To Play experience. On Steam, it carries the stronger Steam consensus at 88.2% positive across 2,831 reviews.
Killer Instinct vs Mortal Kombat 1
Killer Instinct and Mortal Kombat 1 both land in Action 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 are Action games on Steam. Killer Instinct (2017) is 6 years older than Mortal Kombat 1 (2023). Killer Instinct scores higher on Steam reviews (88.2% positive) than Mortal Kombat 1 (72.5% positive). 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 Mortal Kombat 1
Choose Mortal Kombat 1 if you want the HDR available, Subtitle Options, and Custom Volume Controls side of the pairing. On Steam, it's the newer release (2023) and ships with the modern feature baseline. 16,263 Steam reviews back the pick.
Both Killer Instinct and Mortal Kombat 1 sit in Action on Steam and both list Multi-player, Shared/Split Screen, and Online PvP, 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
 Killer Instinct |  Mortal Kombat 1 | |
|---|---|---|
| Released | 2017 | 2023 |
| Genres | Action, Free To Play | Action |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Deck Verified |
| Price | Free to play | 9.99 USD |
| Steam reviews | 88.2% positive (2,831 reviews) | 72.5% positive (16,263 reviews) |
| Multiplayer | Multi-player | Multi-player, Cross-Platform Multiplayer |
| Developers | Iron Galaxy Studios | NetherRealm Studios, QLOC |
Side by side
- Both are Action games on Steam.
- Killer Instinct (2017) is 6 years older than Mortal Kombat 1 (2023).
- Killer Instinct scores higher on Steam reviews (88.2% positive) than Mortal Kombat 1 (72.5% positive).
- Killer Instinct is free; Mortal Kombat 1 is paid (9.99 USD).
- Both are Deck Verified.
Killer Instinct vs Mortal Kombat 1 — FAQ
- Which is better, Killer Instinct or Mortal Kombat 1?
- On Steam reviews Killer Instinct scores higher (88.2% positive) than Mortal Kombat 1 (72.5% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Killer Instinct is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Killer Instinct or Mortal Kombat 1 first?
- If you want chronology, Killer Instinct (2017) came out before Mortal Kombat 1 (2023). 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 Killer Instinct and Mortal Kombat 1 similar?
- They overlap on Action 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.
- Is Killer Instinct free?
- Yes — Killer Instinct is a free-to-play Steam title. Mortal Kombat 1 is paid (9.99 USD).
- Do Killer Instinct and Mortal Kombat 1 both run on Steam Deck?
- Yes — both are Steam Deck Verified, meaning Valve confirms they run with full controller support, legible text, and default settings out of the box.