Games like Putinist Slayer
Games like Putinist Slayer include Alex Jones: NWO Wars, Nova Drift, Vampire Survivors, BALL x PIT, and Guns, Gore & Cannoli. We matched them by the tags players give Putinist Slayer on Steam (Side Scroller, Shoot 'Em Up, Memes, Roguelike, and Psychedelic): closest matches first, and among equally close ones the better-known games.

Alex Jones: NWO Wars
Shared: Shoot 'Em Up · Side Scroller · Shooter

Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Roguelike

Vampire Survivors
Shared: Bullet Hell · 2D · Roguelike

BALL x PIT
Shared: Roguelike · Shoot 'Em Up · Bullet Hell

Guns, Gore & Cannoli
Shared: Side Scroller · Shoot 'Em Up · 2D

Jets'n'Guns Gold
Shared: Shoot 'Em Up · Side Scroller · Bullet Hell

Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · 2D

METAL SLUG
Shared: Side Scroller · Shoot 'Em Up · 2D

Broforce
Shared: 2D · Side Scroller · Action

Rogue Legacy
Shared: Roguelike · 2D · Side Scroller

Huntdown
Shared: Side Scroller · Shoot 'Em Up · Shooter

Super Amazing Wagon Adventure
Shared: Side Scroller · Shoot 'Em Up · Comedy

Undertale
Shared: 2D · Funny · Comedy

DRAINUS
Shared: Shoot 'Em Up · Side Scroller · 2D

Guns, Gore and Cannoli 2
Shared: Side Scroller · Shoot 'Em Up · 2D

Enter the Gungeon
Shared: Roguelike · Bullet Hell · 2D

Skul: The Hero Slayer
Shared: Roguelike · 2D · Side Scroller

The Henry Stickmin Collection
Shared: Memes · Funny · Comedy

Sine Mora
Shared: Shoot 'Em Up · Side Scroller · Bullet Hell

Voidigo
Shared: Roguelike · Shoot 'Em Up · Bullet Hell

Star of Providence
Shared: Shoot 'Em Up · Bullet Hell · Roguelike

Jets'n'Guns 2
Shared: Shoot 'Em Up · Side Scroller · 2D

LUFTRAUSERS
Shared: Shoot 'Em Up · Bullet Hell · 2D

South Park™: The Fractured But Whole™
Shared: Comedy · Memes · Funny