Games like Ra Ra BOOM
Games like Ra Ra BOOM include FAR: Lone Sails, Stellar Blade™, Fallout 4, Bloodstained: Ritual of the Night, and ARMORED CORE™ VI FIRES OF RUBICON™. We matched them by the tags players give Ra Ra BOOM on Steam (2.5D, Shoot 'Em Up, Post-apocalyptic, Robots, and Hand-drawn): closest matches first, and among equally close ones the better-known games.

FAR: Lone Sails
Shared: Post-apocalyptic · 2.5D · Adventure

Stellar Blade™
Shared: Post-apocalyptic · Adventure · Action

Fallout 4
Shared: Post-apocalyptic · Adventure · RPG

Bloodstained: Ritual of the Night
Shared: 2.5D · Adventure · RPG

ARMORED CORE™ VI FIRES OF RUBICON™
Shared: Robots · Combat · Action

FAR: Changing Tides
Shared: 2.5D · Post-apocalyptic · Adventure

AI LIMIT
Shared: Post-apocalyptic · Combat · Adventure

Deadlight
Shared: Post-apocalyptic · Adventure · Action

Fallout: New Vegas
Shared: Post-apocalyptic · RPG · Adventure

Cyberhunt
Shared: Shoot 'Em Up · Adventure · Indie

Absolum
Shared: Hand-drawn · Adventure · Local Co-Op

NieR:Automata™
Shared: RPG · Post-apocalyptic · Robots

The Invincible
Shared: Robots · Adventure · Futuristic

Dungeon Munchies
Shared: Adventure · Post-apocalyptic · Indie

Airscape - The Fall of Gravity
Shared: Shoot 'Em Up · 2.5D · Casual

Machinarium
Shared: Robots · Hand-drawn · Adventure

ENSLAVED™: Odyssey to the West™ Premium Edition
Shared: Post-apocalyptic · Adventure · Robots

Terminator: Resistance
Shared: Post-apocalyptic · Robots · RPG

Eastern Exorcist
Shared: Adventure · RPG · Hand-drawn

Insect Swarm
Shared: Shoot 'Em Up · 2.5D · Post-apocalyptic

Klonoa Phantasy Reverie Series
Shared: 2.5D · Adventure · 1990's

Wuthering Waves
Shared: Adventure · Combat · RPG

Hail to the Rainbow
Shared: Robots · Adventure · Post-apocalyptic

BEEP
Shared: Adventure · Robots · Indie