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Side EffectsNewsSide Effects is out today!
Community

Side Effects is out today!

Side Effects · published 21 Nov 2025, 15:35 UTC

All newsPlayers around this dateRead on Steam

Side Effects is out today!

Hello, treasured test subjects!

The day of the trial is finally here. Side Effects is out now!!!

As well as the solo player mode from the demo, the final version of Side Effects has online multiplayer for up to 4 test subjects. Bluff, betray, deceive, and do everything you can do be the last one standing. 

We want to say a huge thank you to everyone who has supported us so far through our development journey, it’s been an honor experimenting on you all. 

Have fun in the game, and remember - only one can survive :) 

Sincerely,

Your faithful researchers at the Side Effects Team

More from Side Effects

Other announcements

All news
In-game event17 Dec 2025Update v1.09Hello treasured test subjects! We're happy to announce a new patch, fresh from the testing facility. Our goal has been to stabilise multiplayer and enhance the player experience - We're happy to bring forward a few small improvements today. This 1.09 patch includes: · Early-exit player stability Drug roulette is a brutal game of chance and some people don't want to stick around when the table t…Game update16 Dec 2025Beta v1.09Hello test subjects! We've just put a build (v1.09) up on the Beta branch (password: dodrugsnothugs ). It has another fix for non-host players leaving mid-match. Previously the player's character despawned once the player left, but not anymore. Instead the character dies after it's done doing whatever it's doing and the host tries to continue the game's state. This is hopefully a lot more stabl…Game update11 Dec 2025Hotfix 1.08Hello, treasured test subjects! We’ve prepared a small patch today that tidies up a couple of issues reported last night. Here’s what’s included in Hotfix v1.08: • Soft lock fix when non-host players leave We resolved a problem where lobbies could become stuck if a non-host player left mid-session. This should now behave normally. Thank you again for all the feedback and reports. We appreciate…