Games like Grandpa: Bread Adventure
Games like Grandpa: Bread Adventure include Goat Simulator, Totally Accurate Battle Simulator, Psychonauts, Bully: Scholarship Edition, and Summon. We matched them by the tags players give Grandpa: Bread Adventure on Steam (Action, Simulation, Runner, Comedy, and Platformer): closest matches first, and among equally close ones the better-known games.

Goat Simulator
Shared: Simulation · Comedy · Funny

Totally Accurate Battle Simulator
Shared: Simulation · Funny · Singleplayer

Psychonauts
Shared: Comedy · Action · Platformer

Bully: Scholarship Edition
Shared: Action · Comedy · Funny

Summon
Shared: Simulation · Action · Life Sim

Who's Your Daddy?!
Shared: Simulation · Funny · Comedy

Bum Simulator
Shared: Simulation · Action · Funny

Fun with Ragdolls: The Game
Shared: Simulation · Action · Funny

Saints Row: The Third
Shared: Action · Comedy · Funny

Pizza Tower
Shared: Funny · Platformer · Action

Turbo Dismount™
Shared: Simulation · Funny · Action

The Sims™ 4
Shared: Simulation · Life Sim · Singleplayer

BattleBlock Theater®
Shared: Platformer · Comedy · Funny

The Sims™ 3
Shared: Simulation · Life Sim · Funny

Shieldwall
Shared: Action · Simulation · Funny

Mr.President!
Shared: Simulation · Action · Funny

I Am Bread
Shared: Simulation · Funny · Action

Dude Simulator 2
Shared: Simulation · Action · Life Sim

Streamer Life Simulator 2
Shared: Simulation · Life Sim · Action

Portal 2
Shared: Platformer · Singleplayer · Funny

Feed and Grow: Fish
Shared: Simulation · Action · Survival

Crime Scene Cleaner
Shared: Simulation · Action · Singleplayer

Garry's Mod
Shared: Funny · Simulation · Comedy

War Thunder
Shared: Action · Simulation · Free to Play