Games like Nilia
Games like Nilia include The Last Spell, Fell Seal: Arbiter's Mark, Inkbound, Darkest Dungeon® II, and Mewgenics. We matched them by the tags players give Nilia on Steam (RPG, Roguelite, Dungeon Crawler, Turn-Based Tactics, and Strategy): closest matches first, and among equally close ones the better-known games.

The Last Spell
Shared: RPG · Strategy · Turn-Based Tactics

Fell Seal: Arbiter's Mark
Shared: RPG · Turn-Based Tactics · Strategy

Inkbound
Shared: Roguelite · Turn-Based Tactics · Strategy RPG

Darkest Dungeon® II
Shared: Roguelite · Turn-Based Tactics · Dungeon Crawler

Mewgenics
Shared: Roguelite · Turn-Based Tactics · RPG

Into the Breach
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

Megaloot
Shared: Dungeon Crawler · Roguelite · RPG

Darkest Dungeon®
Shared: Dungeon Crawler · RPG · Roguelike

XCOM 2
Shared: RPG · Strategy · Turn-Based Tactics

Legends of Kingdom Rush
Shared: Turn-Based Tactics · Roguelite · RPG

Crown Trick
Shared: RPG · Dungeon Crawler · Roguelite

Lost Eidolons: Veil of the Witch
Shared: Roguelite · Turn-Based Tactics · Strategy

Battle Brothers
Shared: RPG · Strategy · Turn-Based Tactics

Stoneshard
Shared: RPG · Strategy · Roguelike

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · RPG · Character Customization

Jagged Alliance 3
Shared: Turn-Based Tactics · Strategy · RPG

Pathway
Shared: Turn-Based Tactics · RPG · Strategy RPG

Loop Hero
Shared: Roguelite · Roguelike · Strategy RPG

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: RPG · Turn-Based Tactics · Strategy

Prime of Flames
Shared: RPG · Strategy · Roguelite

Lootbound
Shared: Strategy · Dungeon Crawler · Roguelite

Elin
Shared: RPG · Character Customization · Roguelike

Our Adventurer Guild
Shared: Turn-Based Tactics · RPG · Character Customization

The Banner Saga
Shared: RPG · Strategy RPG · Strategy