Games like FlashDuels
Games like FlashDuels include Broforce, Timberman, Vampire Survivors, Pixel Gun 3D: PC Edition, and ShellShock Live. We matched them by the tags players give FlashDuels on Steam (Party Game, Action, Shooter, Casual, and Combat): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Pixel Graphics · 2D

Timberman
Shared: Casual · Action · Pixel Graphics

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Pixel Gun 3D: PC Edition
Shared: Shooter · Action · Pixel Graphics

ShellShock Live
Shared: Action · 2D · Shooter

Umamusume: Pretty Derby - Party Dash
Shared: Action · Casual · Party Game

Strike Force Heroes
Shared: Action · Shooter · 2D

Cookie Clicker
Shared: Casual · Pixel Graphics · Incremental

Duck Game
Shared: Action · Pixel Graphics · 2D

Gensokyo Night Festival
Shared: Action · Casual · Pixel Graphics

Planes, Bullets and Vodka
Shared: Action · Casual · Shooter

Party Animals
Shared: Party Game · Casual · Action

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · 2D

Among Us
Shared: Party Game · 2D · Casual

Commando Collection
Shared: Action · Shooter · Combat

12 is Better Than 6
Shared: Action · Shooter · Western

Turbo Overkill
Shared: Action · Shooter · Pixel Graphics

Borderlands 2
Shared: Action · Shooter · Combat

Rocket Rats
Shared: Casual · Pixel Graphics · Action

Alex Jones: NWO Wars
Shared: Action · Shooter · 2D

Katana ZERO
Shared: Action · Pixel Graphics · 2D

Bit Blaster XL
Shared: Shooter · Action · 2D

Gang Beasts
Shared: Action · Party Game · Casual

Battlefield™ 2042
Shared: Shooter · Action · Combat