Games like Just Sign!
Games like Just Sign! include Overcooked! 2, Bloons TD 6, Gang Beasts, Castle Crashers®, and PICO PARK. We matched them by the tags players give Just Sign! on Steam (Time Management, Online Co-Op, Local Co-Op, Local Multiplayer, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Overcooked! 2
Shared: Online Co-Op · Local Co-Op · Co-op

Bloons TD 6
Shared: Online Co-Op · Co-op · Multiplayer

Gang Beasts
Shared: Co-op · Multiplayer · Local Multiplayer

Castle Crashers®
Shared: Online Co-Op · Co-op · Local Co-Op

PICO PARK
Shared: Online Co-Op · Co-op · Multiplayer

It Takes Two
Shared: Co-op · Online Co-Op · Local Co-Op

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

Overcooked
Shared: Local Co-Op · Multiplayer · Co-op

BattleBlock Theater®
Shared: Co-op · Local Co-Op · Online Co-Op

PEAK
Shared: Online Co-Op · Co-op · Multiplayer

Human Fall Flat
Shared: Co-op · Multiplayer · Local Co-Op

Pummel Party
Shared: Online Co-Op · Multiplayer · Co-op

Brawlhalla
Shared: Multiplayer · Local Multiplayer · Co-op

Stick Fight: The Game
Shared: Multiplayer · Local Multiplayer · Online Co-Op

Ninja Kiwi Archive
Shared: Online Co-Op · Arcade · Casual

Party Animals
Shared: Multiplayer · Co-op · Online Co-Op

Bloons TD 5
Shared: Co-op · Tower Defense · Online Co-Op

Garry's Mod
Shared: Multiplayer · Singleplayer · Casual

Unrailed!
Shared: Online Co-Op · Co-op · Multiplayer

How to Fish
Shared: Online Co-Op · Co-op · Multiplayer

RV There Yet?
Shared: Co-op · Online Co-Op · Multiplayer

Among Us
Shared: Online Co-Op · Multiplayer · Co-op

Bopl Battle
Shared: Online Co-Op · Multiplayer · Local Co-Op

Golf With Your Friends
Shared: Multiplayer · Co-op · Casual