Games like Stick 'Em Up 2: Paper Adventures
Games like Stick 'Em Up 2: Paper Adventures include Broforce, Rayman® Legends, BADLAND: Game of the Year Edition, Cuphead, and Castle Crashers®. We matched them by the tags players give Stick 'Em Up 2: Paper Adventures on Steam (Action, Adventure, Indie, Side Scroller, and Platformer): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Co-op · Platformer

Rayman® Legends
Shared: Adventure · Action · Platformer

BADLAND: Game of the Year Edition
Shared: Adventure · Indie · Action

Cuphead
Shared: Platformer · Co-op · Local Co-Op

Castle Crashers®
Shared: Co-op · Adventure · 2D

Gang Beasts
Shared: Action · Co-op · Multiplayer

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

Shank 2
Shared: Action · Indie · Adventure

Awesomenauts
Shared: Action · Platformer · Indie

SpeedRunners
Shared: Indie · Action · Platformer

Shank
Shared: Action · Indie · Side Scroller

Rocketbirds: Hardboiled Chicken
Shared: Action · Indie · Adventure

Rayman® Origins
Shared: Adventure · Platformer · Action

Human Fall Flat
Shared: Co-op · Adventure · Action

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

Move or Die
Shared: Action · Indie · Multiplayer

TowerFall Ascension
Shared: Indie · Action · Local Multiplayer

Duck Game
Shared: Action · Multiplayer · Indie

Brawlhalla
Shared: Multiplayer · Platformer · Action

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Co-op

Streets of Rage 4
Shared: Action · Indie · Side Scroller

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

Pikuniku
Shared: Adventure · Indie · Action

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · Adventure