Games like Tichu
Games like Tichu include Bloons TD 6, UNO, Plague Inc: Evolved, ShellShock Live, and Bloons TD 5. We matched them by the tags players give Tichu on Steam (Strategy, Casual, Card Game, Tactical, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Strategy · Online Co-Op · Casual

UNO
Shared: Card Game · Casual · Strategy

Plague Inc: Evolved
Shared: Strategy · Casual · Singleplayer

ShellShock Live
Shared: Strategy · Casual · Multiplayer

Bloons TD 5
Shared: Strategy · Casual · Online Co-Op

The Escapists 2
Shared: Strategy · Online Co-Op · Multiplayer

Liars Bar
Shared: Casual · Online Co-Op · Multiplayer

Plants vs. Zombies GOTY Edition
Shared: Strategy · Casual · Singleplayer

Company of Heroes 2
Shared: Strategy · Tactical · Multiplayer

Golf With Your Friends
Shared: Casual · Multiplayer · Singleplayer

Slay the Spire 2
Shared: Card Game · Strategy · Multiplayer

Balatro
Shared: Card Game · Strategy · Singleplayer

Dungeon Defenders
Shared: Strategy · Online Co-Op · Multiplayer

PUBG: BATTLEGROUNDS
Shared: Multiplayer · Online Co-Op · Tactical

Sid Meier’s Civilization® VI
Shared: Strategy · Multiplayer · Singleplayer

Overcooked! 2
Shared: Online Co-Op · Casual · Multiplayer

Town of Salem
Shared: Strategy · Casual · Multiplayer

100% Orange Juice
Shared: Strategy · Card Game · Casual

Agrou
Shared: Strategy · Casual · Online Co-Op

Kingdom Rush - Tower Defense
Shared: Strategy · Tactical · Casual

Insurgency
Shared: Tactical · Multiplayer · Strategy

Dungeon Defenders: Awakened
Shared: Online Co-Op · Strategy · Singleplayer

Among Us
Shared: Online Co-Op · Multiplayer · 2D

Pit People®
Shared: Strategy · Online Co-Op · 2D