Co-op games like Touhou Big Big Battle
Below are 8 cooperative Steam games similar to Touhou Big Big Battle, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Touhou Big Big Battle page.
Ranked picks
- 1

Prime World Legends
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Action and Strategy with Touhou Big Big Battle.
Prime World Legends is a free online game in RPG / MOBA genre with a unique universe where tactical session battles, castle management, and hero development are mixed together. Gather your collection of talents, build an army of invincible heroes and become the champion!
- 2

Kingdom Under Fire 2
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Action and Strategy with Touhou Big Big Battle.
Create your hero and lead your troops on the battlefields of Bersia! Kingdom Under Fire 2 is an action-packed MMORPG/RTS hybrid. Choose one of five heroes, explore a fantasy world and hone your skills until you and your troops are ready for the epic-scale battles of this colossal war!
- 3

Stardust Exile
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Strategy and Indie with Touhou Big Big Battle.
Stardust Exile is an RTS set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics. The remaining star systems are procedurally generated. It has both online mode and single-player skirmish mode. The online server is persistent and single-shard.
- 4

东方幻灵录 ~ Touhou Hakanai Cards
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Strategy and Indie with Touhou Big Big Battle.
Touhou Hakanai Cards is an autochess-like leisure game, includes different styles and distinct characteristics roles, you can use these distinctive characters to organize your own team. Structure you battle economics and use the varied and graceful character cards to fight!
- 5

Pirates of Everseas
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Strategy and Massively Multiplayer with Touhou Big Big Battle.
Build a pirate empire & explore the open seas in this exciting strategy game!
- 6

深空之劫
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Strategy and Indie with Touhou Big Big Battle.
Cosmic Doom: Calamity' is a real-time strategy game set against the backdrop of a spiritual energy revival. The game presents a dynamic battlefield rich in strategic depth and engaging gameplay, centred on authentic real-time combat, complemented by large-scale warfare.
- 7

Wing of Misadventure Retro
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Action and Strategy with Touhou Big Big Battle.
Wing of Misadventure is the definitive Massive Multiplayer Online RPG experience, featuring a unique art style, carefully crafted loot system and fast paced combat style, making it the perfect match for hardcore and casual gamers alike!
- 8

Lugh World
Online Co-op alternative to Touhou Big Big Battle — playable with friends. Shares Action and Indie with Touhou Big Big Battle.
Lugh World is an action monster-taming MMORPG set in a living, ever-evolving open world. Capture and evolve unique beings called Lughs, explore a vast world, and face epic challenges in real-time battles. Uncover secrets, forge your own path, and live the game you’ve always dreamed of!