Games like Lucid.sys
Games like Lucid.sys include The Last Spell, Mewgenics, Battle Brothers, XCOM 2, and Jagged Alliance 3. We matched them by the tags players give Lucid.sys on Steam (RPG, Strategy, Turn-Based Tactics, Turn-Based Strategy, and Roguelike): closest matches first, and among equally close ones the better-known games.

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

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

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

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

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

Limbus Company
Shared: Turn-Based Tactics · Strategy · Turn-Based Combat

MENACE
Shared: RPG · Strategy · Turn-Based Tactics

XCOM®: Chimera Squad
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

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

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

Banner of the Maid
Shared: Strategy · RPG · Turn-Based Strategy

Stoneshard
Shared: RPG · Strategy · Roguelike

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

Darkest Dungeon®
Shared: RPG · Roguelike · Turn-Based Combat

Quasimorph
Shared: RPG · Strategy · Turn-Based Strategy

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

Super Robot Wars 30
Shared: RPG · Strategy · Turn-Based Strategy

Mutant Year Zero: Road to Eden
Shared: RPG · Strategy · Turn-Based Tactics

Heroes of Might and Magic: Olden Era
Shared: RPG · Strategy · Turn-Based Strategy

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

9 Kings
Shared: RPG · Strategy · Roguelike

Prime of Flames
Shared: RPG · Strategy · Turn-Based Tactics

The Banner Saga 3
Shared: RPG · Strategy · Turn-Based Tactics