Games like Last Antagonist
Games like Last Antagonist include Rust, Far Cry 3, Grand Theft Auto V Legacy, Dying Light, and Garry's Mod. We matched them by the tags players give Last Antagonist on Steam (First-Person, Casual, Sandbox, Action, and PvE): closest matches first, and among equally close ones the better-known games.

Rust
Shared: Sandbox · First-Person · Open World

Far Cry 3
Shared: Action · First-Person · Open World

Grand Theft Auto V Legacy
Shared: Action · First-Person · Open World

Dying Light
Shared: First-Person · Zombies · Open World

Garry's Mod
Shared: Sandbox · Casual · First-Person

Far Cry® 6
Shared: Action · Action-Adventure · Open World

Resident Evil Requiem
Shared: First-Person · Action · Zombies

The Forest
Shared: First-Person · Open World · Adventure

Far Cry® 5
Shared: Action-Adventure · First-Person · Open World

Slime Rancher
Shared: First-Person · Adventure · Sandbox

Atomic Heart
Shared: Action · Adventure · Action-Adventure

Far Cry® 4
Shared: Action · First-Person · Open World

Zompiercer
Shared: Sandbox · First-Person · Zombies

GoreBox
Shared: Sandbox · First-Person · PvE

VLADiK BRUTAL
Shared: First-Person · Action · Casual

Far Cry® 2
Shared: Action · First-Person · Open World

DayZ
Shared: Open World · Sandbox · Zombies

Borderlands 4
Shared: PvE · First-Person · FPS

Fallout 4
Shared: First-Person · Open World · Adventure

Far Cry® Primal
Shared: Action · First-Person · Open World

Hello Neighbor
Shared: First-Person · Sandbox · Action-Adventure

BONELAB
Shared: Sandbox · First-Person · Action

s&box
Shared: Sandbox · Casual · Action

How to Fish
Shared: First-Person · Adventure · Action