Games like Agent-00
Games like Agent-00 include Poppy Playtime, Shadow Tactics: Blades of the Shogun, Samsara Room, Idle Champions of the Forgotten Realms, and Where Winds Meet. We matched them by the tags players give Agent-00 on Steam (Indie, Free to Play, Violent, Isometric, and Puzzle): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Free to Play · Puzzle · Singleplayer

Shadow Tactics: Blades of the Shogun
Shared: Stealth · Indie · Isometric

Samsara Room
Shared: Indie · Free to Play · Puzzle

Idle Champions of the Forgotten Realms
Shared: Free to Play · Indie · Singleplayer

Where Winds Meet
Shared: Free to Play · Singleplayer · Indie

HITMAN World of Assassination
Shared: Stealth · Singleplayer · Violent

Chants of Sennaar
Shared: Indie · Puzzle · Singleplayer

Gunpoint
Shared: Indie · Stealth · Puzzle

There Is No Game: Wrong Dimension
Shared: Indie · Puzzle · Adventure

Path of Exile
Shared: Free to Play · Isometric · Indie

Mark of the Ninja: Remastered
Shared: Indie · Stealth · Violent

Varenje
Shared: Free to Play · Indie · Puzzle

Pixel Puzzles: UndeadZ
Shared: Indie · Puzzle · Casual

Wolcen: Lords of Mayhem
Shared: Isometric · Indie · Singleplayer

CAYNE
Shared: Free to Play · Indie · Isometric

Pikuniku
Shared: Indie · Puzzle · Casual

CARRION
Shared: Indie · Violent · Action

Little Nightmares
Shared: Indie · Singleplayer · Puzzle

Little Nightmares II
Shared: Puzzle · Singleplayer · Adventure

Gorogoa
Shared: Indie · Puzzle · Singleplayer

Call of Duty®: Warzone™
Shared: Free to Play · Violent · Singleplayer

Mark of the Ninja
Shared: Indie · Stealth · Singleplayer

Hotline Miami
Shared: Violent · Indie · Action