Games like Deadbeat Heroes: Collector's Upgrade
Games like Deadbeat Heroes: Collector's Upgrade include Left 4 Dead 2, Castle Crashers®, Broforce, Human Fall Flat, and BattleBlock Theater®. We matched them by the tags players give Deadbeat Heroes: Collector's Upgrade on Steam (Downloadable Content): closest matches first, and among equally close ones the better-known games.

Left 4 Dead 2
Shared: Co-op · Single-player · Multi-player

Castle Crashers®
Shared: Co-op · Single-player · Multi-player

Broforce
Shared: Co-op · Single-player · Action

Human Fall Flat
Shared: Co-op · Single-player · Multi-player

BattleBlock Theater®
Shared: Co-op · Single-player · Multi-player

Rocket League®
Shared: Co-op · Single-player · Multi-player

Brawlhalla
Shared: Co-op · Single-player · Multi-player

Overcooked! 2
Shared: Co-op · Single-player · Multi-player

Party Animals
Shared: Co-op · PvP · Single-player

Terraria
Shared: Single-player · Co-op · Multi-player

PAYDAY 2
Shared: Co-op · Single-player · Multi-player

Cuphead
Shared: Co-op · Single-player · Multi-player

FOR HONOR™
Shared: PvP · Co-op · Single-player

War Thunder
Shared: Single-player · Multi-player · PvP

Grand Theft Auto V Legacy
Shared: Single-player · Multi-player · Action

Call of Duty®: WWII
Shared: Co-op · Single-player · Multi-player

Tom Clancy’s The Division™
Shared: Co-op · Single-player · Multi-player

Serious Sam 3: BFE
Shared: Co-op · Single-player · Multi-player

Deep Rock Galactic
Shared: Co-op · Single-player · Multi-player

JoJo's Bizarre Adventure: All-Star Battle R
Shared: PvP · Single-player · Multi-player

Portal 2
Shared: Single-player · Co-op · Multi-player

Resident Evil 3
Shared: Co-op · Single-player · Action

Gears 5
Shared: Co-op · Single-player · Action

Warhammer 40,000: Space Marine 2
Shared: Co-op · Single-player · Multi-player