Games like Forest Smasher
Games like Forest Smasher include Megabonk, Risk of Rain 2, Hades, The Binding of Isaac, and Borderlands 2. We matched them by the tags players give Forest Smasher on Steam (RPG, Action Roguelike, Shooter, Roguelike, and 3D): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Action Roguelike · Roguelike · Loot

Risk of Rain 2
Shared: Action Roguelike · Roguelike · Shooter

Hades
Shared: Action Roguelike · Roguelike · RPG

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Top-Down

Borderlands 2
Shared: Shooter · RPG · Loot

Crab Champions
Shared: Action Roguelike · Roguelike · 3D

Sephiria
Shared: Action Roguelike · Roguelike · RPG

Hades II
Shared: Roguelike · Action Roguelike · RPG

Hero Siege
Shared: Action Roguelike · RPG · Roguelike

Death Must Die
Shared: Action Roguelike · RPG · Roguelike

Gunfire Reborn
Shared: Roguelike · Action Roguelike · RPG

Vampire Survivors
Shared: Action Roguelike · Roguelike · RPG

暖雪 Warm Snow
Shared: Action Roguelike · Roguelike · RPG

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Indie

Magicraft
Shared: Action Roguelike · RPG · Roguelike

Wedding Witch
Shared: Action Roguelike · Roguelike · RPG

Nuclear Throne
Shared: Action Roguelike · Roguelike · Indie

Soulstone Survivors
Shared: Action Roguelike · RPG · Roguelike

Halls of Torment
Shared: Action Roguelike · Roguelike · RPG

Heroes of Hammerwatch II
Shared: RPG · Action Roguelike · Roguelike

Ravenswatch
Shared: Action Roguelike · Roguelike · RPG

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Indie

Rogue Legacy
Shared: Action Roguelike · Roguelike · RPG

Juicy Realm
Shared: Action Roguelike · RPG · Roguelike