Games like Number One Rich
Games like Number One Rich include 9 Kings, Backpack Battles, He is Coming, Slay the Spire, and For The King. We matched them by the tags players give Number One Rich on Steam (Auto Battler, Tabletop, Roguelite, Board Game, and Battle Royale): closest matches first, and among equally close ones the better-known games.

9 Kings
Shared: Auto Battler · Roguelite · RPG

Backpack Battles
Shared: Auto Battler · PvP · Indie

He is Coming
Shared: Auto Battler · Roguelite · Roguelike

Slay the Spire
Shared: Card Battler · Roguelite · Roguelike

For The King
Shared: Tabletop · RPG · Roguelike

Super Fantasy Kingdom
Shared: Auto Battler · Roguelite · Roguelike

Talisman: Digital Classic Edition
Shared: Tabletop · Board Game · Indie

Despot's Game: Dystopian Battle Simulator
Shared: Auto Battler · Indie · Roguelike

Dota Underlords
Shared: Auto Battler · Strategy · Board Game

Liars Bar
Shared: PvP · Indie · Tabletop

Monster Train
Shared: Roguelite · Card Battler · PvP

Legend Creatures(传奇生物)
Shared: Auto Battler · Roguelite · Indie

Luck be a Landlord
Shared: Roguelite · Procedural Generation · Auto Battler

For The King II
Shared: Board Game · RPG · Tabletop

Drop Duchy
Shared: Roguelite · Card Battler · Tabletop

Mechabellum
Shared: Auto Battler · PvP · Strategy

Tabletop Simulator
Shared: Tabletop · Board Game · PvP

The Bazaar
Shared: Auto Battler · PvP · Card Battler

Just King
Shared: Auto Battler · Roguelite · Indie

Balatro
Shared: Roguelike · Roguelite · Indie

Legion TD 2 - Multiplayer Tower Defense
Shared: Auto Battler · PvP · Strategy

Cultist Simulator
Shared: Board Game · Tabletop · Roguelike

Root
Shared: Tabletop · Board Game · PvP

Slay the Spire 2
Shared: Roguelike · Card Battler · Indie