Nightdive Studios says System Shock 2's multiplayer was 'so hard to get working' for modern platforms, but you should still 'probably play it in singleplayer first to get the true experience'

System Shock 2.

One of System Shock 2's more unusual quirks is how it supports four player co-op. This was extremely rare in PC gaming in general at the tail end of the nineties, and it makes System Shock 2 unique among the classic immersive sims.

With its 25^th anniversary remaster, Nightdive Studios wanted to ensure this co-op functionality was brought up to date with the rest of System Shock 2. Yet according to producer Daniel Grayshon, getting it to work was a nightmare worthy of SHODAN herself.