Games like Deadly Days: Roadtrip
Games like Deadly Days: Roadtrip include Megabonk, Brotato, Vampire Survivors, Yet Another Zombie Survivors, and Death Must Die. We matched them by the tags players give Deadly Days: Roadtrip on Steam (Inventory Management, Bullet Heaven, Local Co-Op, Zombies, and Roguelite): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Bullet Heaven · Action Roguelike · Roguelite

Brotato
Shared: Local Co-Op · Bullet Heaven · Action Roguelike

Vampire Survivors
Shared: Action Roguelike · Roguelite · Pixel Graphics

Yet Another Zombie Survivors
Shared: Bullet Heaven · Zombies · Action Roguelike

Death Must Die
Shared: Action Roguelike · Roguelite · Bullet Heaven

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Replay Value · Pixel Graphics

Enter the Gungeon
Shared: Action Roguelike · Local Co-Op · Pixel Graphics

Nuclear Throne
Shared: Action Roguelike · Roguelite · Pixel Graphics

Halls of Torment
Shared: Roguelite · Action Roguelike · Bullet Heaven

BALL x PIT
Shared: Roguelite · Action Roguelike · Action

Soulstone Survivors
Shared: Bullet Heaven · Roguelite · Action Roguelike

Deep Rock Galactic: Survivor
Shared: Bullet Heaven · Action Roguelike · Roguelite

Death Road to Canada
Shared: Zombies · Local Co-Op · Action Roguelike

The Spell Brigade
Shared: Bullet Heaven · Roguelite · Action Roguelike

Neon Abyss
Shared: Bullet Heaven · Loot · Replay Value

Tower of Babel: Survivors of Chaos
Shared: Bullet Heaven · Action Roguelike · Roguelite

Sephiria
Shared: Inventory Management · Roguelite · Action Roguelike

Pathogenic
Shared: Local Co-Op · Bullet Heaven · Action Roguelike

Necrosmith
Shared: Zombies · Action Roguelike · Roguelite

Tiny Rogues
Shared: Action Roguelike · Roguelite · Replay Value

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Top-Down Shooter

Hades
Shared: Roguelite · Action Roguelike · Indie

Streets of Rogue
Shared: Roguelite · Action Roguelike · Pixel Graphics

Wizard of Legend
Shared: Action Roguelike · Local Co-Op · Pixel Graphics