Games like Hidden Boxes
Games like Hidden Boxes include PUBG: BATTLEGROUNDS, Marvel Rivals, Grand Theft Auto V Legacy, ARC Raiders, and World of Warships. We matched them by the tags players give Hidden Boxes on Steam (Third-Person Shooter, Hidden Object, Shooter, Character Customization, and 3D): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Shooter · Third-Person Shooter · PvP

Marvel Rivals
Shared: Third-Person Shooter · PvP · Shooter

Grand Theft Auto V Legacy
Shared: Shooter · Third Person · Third-Person Shooter

ARC Raiders
Shared: Third-Person Shooter · PvP · Shooter

World of Warships
Shared: Third-Person Shooter · Shooter · PvP

The Mean Greens - Plastic Warfare
Shared: Third-Person Shooter · Shooter · Funny

Saints Row: The Third
Shared: Third-Person Shooter · Character Customization · Funny

Pixel Gun 3D: PC Edition
Shared: PvP · Shooter · Character Customization

Rogue Company
Shared: Third-Person Shooter · Shooter · PvP

MADNESS: Project Nexus
Shared: Shooter · Character Customization · Funny

Warframe
Shared: Third-Person Shooter · Third Person · Character Customization

s&box
Shared: Shooter · Third-Person Shooter · 3D

Mecha BREAK
Shared: PvP · Third-Person Shooter · Character Customization

HELLDIVERS™ 2
Shared: Third-Person Shooter · Shooter · Action

Gigantic: Rampage Edition
Shared: PvP · Third-Person Shooter · 3D

Risk of Rain 2
Shared: Third-Person Shooter · Shooter · PvP

Wild Assault
Shared: Third-Person Shooter · Shooter · PvP

Plants vs. Zombies: Battle for Neighborville™
Shared: Third-Person Shooter · Shooter · Funny

Strinova
Shared: Third-Person Shooter · Shooter · PvP

Sword Art Online: Fatal Bullet
Shared: Character Customization · Third-Person Shooter · Shooter

Just Cause™ 3
Shared: Third-Person Shooter · Shooter · Action

Predator: Hunting Grounds
Shared: PvP · Shooter · Character Customization

Farlight 84
Shared: Third-Person Shooter · Shooter · PvP

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Third-Person Shooter · Shooter · Action