Games like Lonia Saga 2
Games like Lonia Saga 2 include Dust: An Elysian Tail, Terraria, Dungeon Munchies, Rogue Legacy 2, and Last Oasis. We matched them by the tags players give Lonia Saga 2 on Steam (Action, Adventure, Indie, RPG, and Platformer): closest matches first, and among equally close ones the better-known games.

Dust: An Elysian Tail
Shared: Action · Indie · Platformer

Terraria
Shared: Adventure · 2D · Crafting

Dungeon Munchies
Shared: Action · Indie · Adventure

Rogue Legacy 2
Shared: Action · Indie · Platformer

Last Oasis
Shared: Action · RPG · Adventure

UnEpic
Shared: Indie · RPG · Action

Magicite
Shared: Indie · RPG · Adventure

Hollow Knight
Shared: Platformer · Indie · 2D

Bloodstained: Ritual of the Night
Shared: Action · RPG · Adventure

ICEY
Shared: Action · Adventure · Indie

Rogue Legacy
Shared: Indie · Action · Platformer

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Eastern Exorcist
Shared: Action · RPG · Adventure

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · Adventure

The Vagrant
Shared: Action · RPG · Adventure

Rust
Shared: Crafting · Adventure · Action

Trine 5: A Clockwork Conspiracy
Shared: Action · Adventure · RPG

Broforce
Shared: Action · Platformer · Indie

Hollow Knight: Silksong
Shared: Indie · Platformer · 2D

Farever
Shared: Action · RPG · Adventure

Edge of Space
Shared: Indie · Adventure · Action

Deadlight
Shared: Action · Indie · Platformer

SANABI
Shared: Action · Adventure · Indie

Bladed fury
Shared: Action · Indie · Adventure