Games like Mugen Souls
Games like Mugen Souls include TROUBLESHOOTER: Abandoned Children, Disgaea PC, Disgaea 5 Complete, Disgaea 2 PC, and Agarest: Generations of War. We matched them by the tags players give Mugen Souls on Steam (JRPG, Strategy RPG, Turn-Based Tactics, Tactical RPG, and Visual Novel): closest matches first, and among equally close ones the better-known games.

TROUBLESHOOTER: Abandoned Children
Shared: Turn-Based Tactics · Tactical RPG · Strategy RPG

Disgaea PC
Shared: JRPG · Strategy RPG · Turn-Based

Disgaea 5 Complete
Shared: JRPG · Turn-Based Tactics · Strategy RPG

Disgaea 2 PC
Shared: Strategy RPG · JRPG · Turn-Based Tactics

Agarest: Generations of War
Shared: JRPG · Tactical RPG · Visual Novel

Tactics Ogre: Reborn
Shared: Strategy RPG · Turn-Based Tactics · Tactical RPG

Hyperdimension Neptunia Re;Birth1
Shared: JRPG · Female Protagonist · Comedy

Symphony of War: The Nephilim Saga
Shared: Tactical RPG · Strategy RPG · RPG

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

Sora no Kiseki the 1st
Shared: JRPG · Turn-Based Tactics · Party-Based RPG

Banner of the Maid
Shared: Turn-Based Tactics · JRPG · Tactical RPG

Valkyria Chronicles™
Shared: JRPG · Turn-Based · Strategy RPG

Tactical Breach Wizards
Shared: Turn-Based Tactics · Turn-Based · Strategy RPG

Hyperdevotion Noire: Goddess Black Heart (Neptunia)
Shared: JRPG · Strategy RPG · RPG

Persona 3 Reload
Shared: JRPG · Party-Based RPG · RPG

OCTOPATH TRAVELER II
Shared: JRPG · Turn-Based · Party-Based RPG

Fuga: Melodies of Steel
Shared: JRPG · Turn-Based Tactics · Tactical RPG

The Banner Saga
Shared: Strategy RPG · Tactical RPG · Turn-Based

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

Hyperdimension Neptunia Re;Birth2: Sisters Generation
Shared: JRPG · Turn-Based · Female Protagonist

STARDUST: Wish of Witch
Shared: JRPG · Turn-Based Tactics · Tactical RPG

The Legend of Heroes: Trails in the Sky
Shared: JRPG · Turn-Based · RPG

Disgaea 4 Complete+
Shared: Strategy RPG · JRPG · Tactical RPG

TRIANGLE STRATEGY
Shared: Strategy RPG · Turn-Based Tactics · JRPG