Games like Flappy Together
Games like Flappy Together include Paddle Paddle Paddle, Chained Together, BETON BRUTAL, Climber Animals: Together, and Brawlhalla. We matched them by the tags players give Flappy Together on Steam (Precision Platformer, Casual, 3D Platformer, Flight, and Parkour): closest matches first, and among equally close ones the better-known games.

Paddle Paddle Paddle
Shared: Co-op · Casual · Parkour

Chained Together
Shared: Co-op · Casual · Platformer

BETON BRUTAL
Shared: Precision Platformer · 3D Platformer · Casual

Climber Animals: Together
Shared: Casual · 3D Platformer · Platformer

Brawlhalla
Shared: Casual · Co-op · Platformer

Hot Lava
Shared: Precision Platformer · 3D Platformer · Parkour

Refunct
Shared: 3D Platformer · Parkour · Casual

Only Climb: Better Together
Shared: Precision Platformer · 3D Platformer · Platformer

Haste
Shared: 3D Platformer · Parkour · Co-op

Neon White
Shared: 3D Platformer · Parkour · Platformer

Carry The Glass
Shared: Co-op · 3D Platformer · Casual

Trine 3: The Artifacts of Power
Shared: Co-op · 3D Platformer · Controller

White Knuckle
Shared: Parkour · 3D Platformer · Precision Platformer

Only Up: With Friends
Shared: Casual · Parkour · Co-op

VHOLUME
Shared: Parkour · 3D Platformer · Casual

SEUM: Speedrunners from Hell
Shared: Precision Platformer · 3D Platformer · Parkour

Bloons TD 6
Shared: Co-op · Casual · 3D

Pseudoregalia
Shared: 3D Platformer · Parkour · Platformer

PowerWash Simulator
Shared: Casual · Co-op · 3D

Super Meat Boy 3D
Shared: Precision Platformer · 3D Platformer · Platformer

Bomb Rush Cyberfunk
Shared: 3D Platformer · Parkour · 3D

Toree 3D
Shared: 3D Platformer · Platformer · Precision Platformer

KeyWe
Shared: Co-op · Casual · 3D Platformer

Sackboy™: A Big Adventure
Shared: Co-op · Platformer · 3D Platformer