Games like Kingslayer: The First Assassin
Games like Kingslayer: The First Assassin include Total War: WARHAMMER III, Armello, Total War: WARHAMMER II, Total War: MEDIEVAL II – Definitive Edition, and Gremlins, Inc.. We matched them by the tags players give Kingslayer: The First Assassin on Steam (Grid-Based Movement, Strategy, Board Game, Medieval, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.

Total War: WARHAMMER III
Shared: Strategy · Turn-Based Strategy · RTS

Armello
Shared: Board Game · Turn-Based Strategy · Strategy

Total War: WARHAMMER II
Shared: Strategy · Turn-Based Strategy · RTS

Total War: MEDIEVAL II – Definitive Edition
Shared: Strategy · Medieval · Turn-Based Strategy

Gremlins, Inc.
Shared: Board Game · Strategy · Tabletop

Ultimate General: Civil War
Shared: Strategy · Tabletop · Real Time Tactics

Carcassonne - Tiles and Tactics
Shared: Strategy · Board Game · Tabletop

Total War: ATTILA
Shared: Strategy · Turn-Based Strategy · RTS

Wingspan
Shared: Board Game · Strategy · Tabletop

UNO
Shared: Board Game · Tabletop · Strategy

A Total War Saga: THRONES OF BRITANNIA
Shared: Strategy · Medieval · Turn-Based Strategy

Through the Ages
Shared: Strategy · Board Game · Tabletop

Age of Darkness: Final Stand
Shared: Strategy · RTS · Action RTS

Age of Empires II (Retired)
Shared: Strategy · Medieval · RTS

Talisman: Digital Classic Edition
Shared: Board Game · Strategy · Tabletop

Stronghold: Definitive Edition
Shared: Strategy · Medieval · Real Time Tactics

A Game of Thrones: The Board Game
Shared: Strategy · Board Game · Turn-Based Strategy

Total War: THREE KINGDOMS
Shared: Strategy · Turn-Based Strategy · RTS

Root
Shared: Board Game · Strategy · Tabletop

Twilight Struggle
Shared: Strategy · Board Game · Tabletop

Total War: ROME II - Emperor Edition
Shared: Strategy · Turn-Based Strategy · RTS

Axis and Allies 1942 Online
Shared: Strategy · Board Game · Turn-Based Strategy

Just Go
Shared: Strategy · Board Game · Turn-Based Strategy

Dorfromantik
Shared: Board Game · Strategy · Turn-Based Strategy