Games like Robot Hero
Games like Robot Hero include SANABI, 黯渊崛起:魔灵深渊, Celeste, Mewgenics, and Hollow Knight: Silksong. We matched them by the tags players give Robot Hero on Steam (Adventure, Turn-Based Strategy, 2D Platformer, 2D, and Robots): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Adventure · 2D Platformer · 2D

黯渊崛起:魔灵深渊
Shared: Adventure · Turn-Based Strategy · 2D Platformer

Celeste
Shared: 2D Platformer · Indie · 2D

Mewgenics
Shared: Turn-Based Strategy · Turn-Based Tactics · 2D

Hollow Knight: Silksong
Shared: 2D · Indie · Adventure

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: Adventure · Turn-Based Tactics · Turn-Based Strategy

BEEP
Shared: Adventure · 2D · Indie

Stray
Shared: Adventure · Singleplayer · Robots

军团战棋Legion War
Shared: Adventure · Turn-Based Strategy · 2D

The Last Spell
Shared: Turn-Based Strategy · Turn-Based Tactics · Singleplayer

Mind Over Magnet
Shared: Adventure · 2D Platformer · Robots

STAR WARS Zero Company™
Shared: Turn-Based Strategy · Turn-Based Tactics · Singleplayer

Hollow Knight
Shared: 2D · Adventure · Singleplayer

SteamWorld Heist
Shared: Adventure · 2D · Indie

Shanhe
Shared: Adventure · Turn-Based Strategy · Singleplayer

Pizza Tower
Shared: 2D Platformer · Indie · Singleplayer

BattleTech
Shared: Turn-Based Strategy · Turn-Based Tactics · Robots

Thank Goodness You're Here!
Shared: Adventure · 2D Platformer · 2D

Terraria
Shared: Adventure · 2D · Indie

SteamWorld Heist II
Shared: Turn-Based Strategy · Turn-Based Tactics · Singleplayer

Himno
Shared: 2D · Adventure · 2D Platformer

Tactical Breach Wizards
Shared: Turn-Based Strategy · Turn-Based Tactics · Singleplayer

Heartbound
Shared: Adventure · 2D · Early Access

英雄群侠传
Shared: Adventure · Turn-Based Strategy · 2D Platformer