66%Strong matchRatz Instagib
91%3k91% positive reviews, Very Positive across 3k reviews·FPS · Arena Shooter
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ISO is an indie built one shot–one kill airsoft first person shooter. Fight alongside your friends in intense 5v5 battles or fight solo in 10 player free for all matches. Immerse yourself in the stunning visuals created in Unreal Engine 5 and dive into fast paced gameplay where every BB counts.
Choose from 3 unique loadouts and 5 distinct weapons each with different play styles based on authentic airsoft weapons.
Make Every BB Count.

Host your own games or simply join an existing game— the choice is yours.

Small maps with fast respawn times mean the action is always just around the corner.

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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