Games like Flappy Swan
Games like Flappy Swan include Vampire Survivors, Razortron 2000, A Dance of Fire and Ice, Timberman, and Peggle Deluxe. We matched them by the tags players give Flappy Swan on Steam (Casual, 2D, 1980s, Linear, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: 2D · Casual · Singleplayer

Razortron 2000
Shared: Casual · 1980s · 2D

A Dance of Fire and Ice
Shared: 2D · Singleplayer · Arcade

Timberman
Shared: Casual · 2D · Indie

Peggle Deluxe
Shared: Casual · 2D · Singleplayer

To The Core
Shared: Casual · 2D · Arcade

RetroMaze
Shared: Casual · 2D · Indie

Zup! S
Shared: Casual · 2D · Indie

Game Dev Tycoon
Shared: Casual · 2D · Singleplayer

Cat Goes Fishing
Shared: 2D · Casual · Singleplayer

pureya
Shared: Casual · 2D · Arcade

Retrowave
Shared: 1980s · Casual · Indie

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · 2D

UFO 50
Shared: 2D · Indie · Arcade

Melvor Idle
Shared: Casual · 2D · Singleplayer

Kung Fury: Street Rage - Ultimate Edition
Shared: Arcade · 1980s · Indie

OutDrive
Shared: Casual · 1980s · Indie

Cyberhunt
Shared: Casual · Indie · 2D

Keep on Mining!
Shared: Casual · Singleplayer · Indie

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: 2D · Casual · Arcade

Zup!
Shared: Casual · 2D · Indie

Geometry Dash
Shared: 2D · Singleplayer · Indie

Sixtar Gate: STARTRAIL
Shared: Casual · 2D · Arcade

Shelldiver
Shared: Casual · 2D · Arcade