Games like Learn Japanese or... Die!
Games like Learn Japanese or... Die! include Vampire Survivors, Hades, The Binding of Isaac: Rebirth, Skul: The Hero Slayer, and Megabonk. We matched them by the tags players give Learn Japanese or... Die! on Steam (Action Roguelike, Language Learning, Roguelite, Education, and Roguelike): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Roguelike

Hades
Shared: Action Roguelike · Roguelite · Roguelike

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

Skul: The Hero Slayer
Shared: Action Roguelike · Roguelike · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Procedural Generation

Hades II
Shared: Roguelite · Roguelike · Action Roguelike

Halls of Torment
Shared: Action Roguelike · Roguelite · Roguelike

Streets of Rogue
Shared: Action Roguelike · Roguelite · Roguelike

Dungreed
Shared: Action Roguelike · Roguelite · Roguelike

Gunfire Reborn
Shared: Roguelite · Roguelike · Action Roguelike

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike

Sephiria
Shared: Action Roguelike · Roguelite · Roguelike

Mortal Sin
Shared: Action Roguelike · First-Person · Roguelite

Eldritch
Shared: Action Roguelike · Roguelike · First-Person

Nuclear Throne
Shared: Action Roguelike · Roguelike · Roguelite

Monstrum
Shared: Action Roguelike · Horror · Roguelike

Death Must Die
Shared: Action Roguelike · Roguelite · Pixel Graphics

UnderMine
Shared: Action Roguelike · Roguelite · Pixel Graphics

Rogue Legacy
Shared: Action Roguelike · Roguelike · Roguelite

Wizard of Legend
Shared: Action Roguelike · Roguelike · Roguelite

Risk of Rain (2013)
Shared: Action Roguelike · Roguelike · Action

Moonlighter
Shared: Roguelite · Action Roguelike · Roguelike