Games like RELOADIAN
Games like RELOADIAN include Risk of Rain 2, Ravenswatch, Gunfire Reborn, Hades, and Children of Morta. We matched them by the tags players give RELOADIAN on Steam (Action Roguelike, Online Co-Op, Roguelite, Hack and Slash, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Risk of Rain 2
Shared: Action Roguelike · Co-op · Multiplayer

Ravenswatch
Shared: Action Roguelike · Co-op · Online Co-Op

Gunfire Reborn
Shared: Roguelite · Online Co-Op · Co-op

Hades
Shared: Action Roguelike · Roguelite · Hack and Slash

Children of Morta
Shared: Online Co-Op · Action Roguelike · Multiplayer

ELDEN RING NIGHTREIGN
Shared: Online Co-Op · Co-op · Multiplayer

Risk of Rain (2013)
Shared: Action Roguelike · Online Co-Op · Platformer

Windblown
Shared: Action Roguelike · Online Co-Op · Hack and Slash

Roboquest
Shared: Action Roguelike · Roguelite · Online Co-Op

HELLDIVERS™ 2
Shared: Online Co-Op · Multiplayer · Co-op

Warhammer: Vermintide 2
Shared: Co-op · Online Co-Op · Hack and Slash

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

PEAK
Shared: Online Co-Op · Co-op · Multiplayer

Ember Knights
Shared: Action Roguelike · Co-op · Roguelite

Heroes of Hammerwatch
Shared: Action Roguelike · Roguelite · Co-op

Brotato
Shared: Action Roguelike · Roguelike · Multiplayer

Shape of Dreams
Shared: Action Roguelike · Co-op · Roguelite

Streets of Rogue
Shared: Action Roguelike · Roguelite · Multiplayer

20XX
Shared: Action Roguelike · Online Co-Op · Platformer

Risk of Rain Returns
Shared: Action Roguelike · Online Co-Op · Multiplayer

SWORN
Shared: Co-op · Action Roguelike · Roguelite

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

Hades II
Shared: Roguelite · Action Roguelike · Hack and Slash

Hero Siege
Shared: Action Roguelike · Hack and Slash · Co-op