Games like Into the Restless Ruins
Games like Into the Restless Ruins include Slay the Spire, Balatro, Hades, Slay the Spire 2, and The Binding of Isaac: Rebirth. We matched them by the tags players give Into the Restless Ruins on Steam (Action Roguelike, Roguelike Deckbuilder, Dungeon Crawler, Roguelite, and Auto Battler): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Roguelike Deckbuilder · Roguelite · Roguelike

Balatro
Shared: Roguelike Deckbuilder · Roguelike · Roguelite

Hades
Shared: Action Roguelike · Roguelite · Dungeon Crawler

Slay the Spire 2
Shared: Roguelike Deckbuilder · Roguelike · Strategy

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Dungeon Crawler · Roguelike

9 Kings
Shared: Auto Battler · Roguelike Deckbuilder · Strategy

Hades II
Shared: Roguelite · Action Roguelike · Dungeon Crawler

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

Vampire Survivors
Shared: Action Roguelike · Roguelite · 2D

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Dungeon Crawler · Strategy · Roguelike

Enter the Gungeon
Shared: Action Roguelike · Dungeon Crawler · Roguelike

UnderMine
Shared: Action Roguelike · Roguelite · Dungeon Crawler

Moonlighter
Shared: Dungeon Crawler · Roguelite · Action Roguelike

Hand of Fate
Shared: Roguelike Deckbuilder · Action Roguelike · Roguelike

Halls of Torment
Shared: Action Roguelike · Roguelite · Action RPG

Dead Cells
Shared: Action Roguelike · Roguelite · Roguelike

He is Coming
Shared: Auto Battler · Roguelite · Dungeon Crawler

Skul: The Hero Slayer
Shared: Action Roguelike · Roguelite · 2D

Hand of Fate 2
Shared: Roguelike Deckbuilder · Action Roguelike · Roguelite

Dungreed
Shared: Action Roguelike · Roguelite · Dungeon Crawler

Super Fantasy Kingdom
Shared: Roguelite · Auto Battler · Strategy

暖雪 Warm Snow
Shared: Action Roguelike · Roguelite · 2D

Wizard of Legend
Shared: Action Roguelike · Dungeon Crawler · Roguelite

One Step From Eden
Shared: Action Roguelike · Roguelite · Deckbuilding