Games like Milo no Senki 3
Games like Milo no Senki 3 include The Last Spell, Tactical Breach Wizards, Jagged Alliance 3, Fell Seal: Arbiter's Mark, and The Banner Saga. We matched them by the tags players give Milo no Senki 3 on Steam (Strategy, Strategy RPG, Tactical RPG, Comedy, and Singleplayer): closest matches first, and among equally close ones the better-known games.

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

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

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

Fell Seal: Arbiter's Mark
Shared: Strategy · Tactical RPG · RPG

The Banner Saga
Shared: Tactical RPG · Strategy RPG · Strategy

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

FINAL FANTASY TACTICS - The Ivalice Chronicles
Shared: Tactical RPG · Turn-Based Strategy · Turn-Based Tactics

Disgaea PC
Shared: Strategy RPG · Comedy · Tactical RPG

Wargroove
Shared: Strategy · Tactical RPG · Strategy RPG

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

Disgaea 5 Complete
Shared: Strategy · Tactical RPG · Strategy RPG

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

Disgaea 2 PC
Shared: Strategy RPG · Tactical RPG · RPG

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

King Arthur: Knight's Tale
Shared: Tactical RPG · Turn-Based Tactics · RPG

DELTARUNE
Shared: Singleplayer · RPG · Comedy

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

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

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

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

King's Bounty II
Shared: Strategy · Turn-Based Strategy · Tactical RPG

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

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

The Three Kingdoms: The Tales of Jian An
Shared: Strategy · Tactical RPG · Strategy RPG