Games like Fantasy Survivors
Games like Fantasy Survivors include Megabonk, Vampire Survivors, Risk of Rain 2, Death Must Die, and Skul: The Hero Slayer. We matched them by the tags players give Fantasy Survivors on Steam (Action, Casual, Roguelite, Pixel Graphics, and Fantasy): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Roguelite · Action · Indie

Vampire Survivors
Shared: Roguelite · Pixel Graphics · Indie

Risk of Rain 2
Shared: Action · Roguelite · Co-op

Death Must Die
Shared: Roguelite · Pixel Graphics · Action

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Sephiria
Shared: Roguelite · Action · Pixel Graphics

Gunfire Reborn
Shared: Roguelite · Action · Indie

Streets of Rogue
Shared: Roguelite · Pixel Graphics · Action

The Spell Brigade
Shared: Roguelite · Action · Online Co-Op

Heroes of Hammerwatch
Shared: Roguelite · Pixel Graphics · Action

Broforce
Shared: Action · Pixel Graphics · Co-op

20 Minutes Till Dawn
Shared: Roguelite · Pixel Graphics · Casual

Boneraiser Minions
Shared: Roguelite · Pixel Graphics · Casual

Witch It
Shared: Casual · Action · Indie

Children of Morta
Shared: Pixel Graphics · Roguelite · Action

Risk of Rain (2013)
Shared: Action · Indie · Pixel Graphics

Ravenswatch
Shared: Action · Roguelite · Co-op

Halls of Torment
Shared: Roguelite · Pixel Graphics · Action

Borderlands 2
Shared: Action · Loot · Co-op

UnderMine
Shared: Roguelite · Pixel Graphics · Action

Hades
Shared: Roguelite · Action · Indie

Warhammer: Vermintide 2
Shared: Co-op · Fantasy · Online Co-Op

Dungreed
Shared: Pixel Graphics · Action · Roguelite

Timberman
Shared: Casual · Pixel Graphics · Action