Games like RIKI
Games like RIKI include Tomb Raider Game of the Year, Ori and the Will of the Wisps, Rogue Legacy 2, SANABI, and Exit the Gungeon. We matched them by the tags players give RIKI on Steam (Adventure, Action, Arcade, Action-Adventure, and Platformer): closest matches first, and among equally close ones the better-known games.

Tomb Raider Game of the Year
Shared: Adventure · Action · Action-Adventure

Ori and the Will of the Wisps
Shared: Platformer · Action · Adventure

Rogue Legacy 2
Shared: Arcade · Action · Platformer

SANABI
Shared: Action · Adventure · Action-Adventure

Exit the Gungeon
Shared: Arcade · Action · Adventure

Rise of the Tomb Raider™
Shared: Adventure · Action · Action-Adventure

Journey To The Savage Planet
Shared: Adventure · Action · Action-Adventure

Hollow Knight
Shared: Platformer · Adventure · Exploration

Escape From Duckov
Shared: Adventure · Action · Shooter

Sonic Superstars
Shared: Action · Adventure · Platformer

Zombotron
Shared: Action · Adventure · Shooter

Cuphead
Shared: Platformer · Bullet Hell · 2D

Bit Blaster XL
Shared: Arcade · Bullet Hell · Shooter

Warhammer 40,000: Shootas, Blood & Teef
Shared: Adventure · Bullet Hell · Shooter

F.I.S.T.: Forged In Shadow Torch
Shared: Action · Adventure · Platformer

Trine 5: A Clockwork Conspiracy
Shared: Adventure · Action · Action-Adventure

Tomb Raider: Underworld
Shared: Adventure · Action · Platformer

Constance
Shared: Action · Platformer · Action-Adventure

Broforce
Shared: Action · Platformer · Shooter

Minecraft Dungeons II
Shared: Adventure · Action · Action-Adventure

Squirrel with a Gun
Shared: Action · Platformer · Shooter

Sonic Frontiers
Shared: Adventure · Action · Action-Adventure

Darwin's Paradox!
Shared: Adventure · Action · Action-Adventure

Pumpkin Jack
Shared: Adventure · Action · Platformer