Games like The Ice Caves
Games like The Ice Caves include Risk of Rain (2013), Vampire Survivors, Skul: The Hero Slayer, Dead Cells, and Downwell. We matched them by the tags players give The Ice Caves on Steam (Casual, Action Roguelike, Shoot 'Em Up, 2D Platformer, and Perma Death): closest matches first, and among equally close ones the better-known games.

Risk of Rain (2013)
Shared: Action Roguelike · Platformer · Roguelike

Vampire Survivors
Shared: Action Roguelike · Casual · 2D

Skul: The Hero Slayer
Shared: Action Roguelike · Roguelike · Platformer

Dead Cells
Shared: Action Roguelike · Roguelike · 2D

Downwell
Shared: Action Roguelike · Platformer · 2D Platformer

Spelunky
Shared: Action Roguelike · Platformer · Roguelike

Caveblazers
Shared: Action Roguelike · Platformer · 2D Platformer

30XX
Shared: Action Roguelike · 2D Platformer · Perma Death

Noita
Shared: Roguelike · Action Roguelike · Perma Death

BlazBlue Entropy Effect
Shared: Action Roguelike · Platformer · 2D

Rogue Legacy
Shared: Action Roguelike · Platformer · Roguelike

Anomaly Agent
Shared: Action Roguelike · 2D Platformer · Platformer

Spelunky 2
Shared: 2D Platformer · Platformer · Perma Death

Crab Champions
Shared: Action Roguelike · Roguelike · Casual

Juicy Realm
Shared: Action Roguelike · Casual · Roguelike

Neon Abyss
Shared: Platformer · Roguelike · Shooter

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Indie

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

SANABI
Shared: 2D Platformer · 2D · Cyberpunk

Webbed
Shared: 2D Platformer · Cute · Platformer

Magicite
Shared: Action Roguelike · Roguelike · Platformer

Neon Abyss 2
Shared: Action Roguelike · Roguelike · Platformer

Pikuniku
Shared: Casual · Cute · Indie

Katana ZERO
Shared: Platformer · 2D Platformer · Action