Games like Decopins2
Games like Decopins2 include Garry's Mod, Call of Duty®, Ready or Not, VLADiK BRUTAL, and s&box. We matched them by the tags players give Decopins2 on Steam (Action, Casual, Shooter, Tower Defense, and Incremental): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Casual · FPS · Shooter

Call of Duty®
Shared: Shooter · Action · FPS

Ready or Not
Shared: Shooter · FPS · Realistic

VLADiK BRUTAL
Shared: Shooter · Action · FPS

s&box
Shared: Casual · Action · Shooter

Half-Life 2
Shared: Action · FPS · Shooter

Borderlands 2
Shared: Action · Shooter · FPS

Battlefield™ 6
Shared: Action · Shooter · FPS

Insurgency: Sandstorm
Shared: Shooter · Action · FPS

BioShock Infinite
Shared: Action · Shooter · FPS

Insurgency
Shared: Action · Shooter · FPS

Neon White
Shared: Action · 3D Platformer · FPS

Ravenfield
Shared: Shooter · Action · FPS

Blood and Bacon
Shared: Action · Shooter · FPS

Black Mesa
Shared: Action · FPS · Shooter

Hell Let Loose
Shared: Shooter · Action · FPS

Call of Duty®: Modern Warfare® II
Shared: Action · Shooter · FPS

Arma 3
Shared: Action · Shooter · Realistic

WARDOGS
Shared: Action · FPS · Shooter

Serious Sam II
Shared: Action · Shooter · FPS

DOOM
Shared: Action · Shooter · FPS

Battlefield™ 2042
Shared: Shooter · Action · FPS

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Casual · Comedy

KovaaK's
Shared: Action · Shooter · FPS