IMHO.

System Shock® 2 (1999) vs System Shock 2: 25th Anniversary Remaster

System Shock® 2 (1999) and System Shock 2: 25th Anniversary Remaster both land in Action, RPG 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, RPG on Steam. System Shock® 2 (1999) (2013) is 12 years older than System Shock 2: 25th Anniversary Remaster (2025). System Shock® 2 (1999) scores higher on Steam reviews (94.5% positive) than System Shock 2: 25th Anniversary Remaster (87.4% 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 System Shock® 2 (1999)

Choose System Shock® 2 (1999) if it carries the stronger Steam consensus at 94.5% positive across 4,870 reviews.

Choose System Shock 2: 25th Anniversary Remaster

Choose System Shock 2: 25th Anniversary Remaster if you want an Adventure game with Online Co-op and LAN Co-op. On Steam, it's the newer release (2025) and ships with the modern feature baseline. 1,310 Steam reviews back the pick.

Both System Shock® 2 (1999) and System Shock 2: 25th Anniversary Remaster sit in Action and RPG on Steam and both list Multi-player and Co-op, 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

System Shock® 2 (1999) vs System Shock 2: 25th Anniversary Remaster — Steam metadata comparison
System Shock® 2 (1999) — Steam game coverSystem Shock® 2 (1999)System Shock 2: 25th Anniversary Remaster — Steam game coverSystem Shock 2: 25th Anniversary Remaster
Released20132025
GenresAction, RPGAction, Adventure, RPG
PlatformsWindows, macOSWindows
Steam DeckDeck PlayableDeck Verified
PricePrice unknown29.99 USD
Steam reviews94.5% positive (4,870 reviews)87.4% positive (1,310 reviews)
MultiplayerMulti-player, Co-opMulti-player, Cross-Platform Multiplayer, Online Co-op
DevelopersNightdive Studios, Irrational Games, Looking Glass StudiosNightdive Studios, Looking Glass Studios, Irrational Games

Side by side

System Shock® 2 (1999) vs System Shock 2: 25th Anniversary Remaster — FAQ

Which is better, System Shock® 2 (1999) or System Shock 2: 25th Anniversary Remaster?
On Steam reviews System Shock® 2 (1999) scores higher (94.5% positive) than System Shock 2: 25th Anniversary Remaster (87.4% positive). Both have enough reviews to trust the signal, so for players using reviews alone, System Shock® 2 (1999) is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
Should I play System Shock® 2 (1999) or System Shock 2: 25th Anniversary Remaster first?
If you want chronology, System Shock® 2 (1999) (2013) came out before System Shock 2: 25th Anniversary Remaster (2025). 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 System Shock® 2 (1999) and System Shock 2: 25th Anniversary Remaster similar?
They overlap on Action, RPG 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 System Shock® 2 (1999) and System Shock 2: 25th Anniversary Remaster have co-op?
Yes — both list a co-op category on Steam. Specifics differ: System Shock® 2 (1999) ships Co-op; System Shock 2: 25th Anniversary Remaster ships Online Co-op, LAN Co-op.