Games like Viking Rise
Games like Viking Rise include Total War: WARHAMMER, Battle Brothers, Kingdom Heroes 8, Broken Arrow, and Mount & Blade II: Bannerlord. We matched them by the tags players give Viking Rise on Steam (Strategy, RPG, 4X, Strategy RPG, and Real Time Tactics): closest matches first, and among equally close ones the better-known games.

Total War: WARHAMMER
Shared: Strategy · RPG · 4X

Battle Brothers
Shared: Strategy · RPG · 4X

Kingdom Heroes 8
Shared: Strategy · Real Time Tactics · Strategy RPG

Broken Arrow
Shared: Strategy · Wargame · Real Time Tactics

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Medieval

Europa Universalis IV
Shared: Strategy · 4X · Wargame

Doomsday: Undead Bride
Shared: Strategy · Strategy RPG · 4X

WARNO
Shared: Strategy · Wargame · Real Time Tactics

Crusader Kings III
Shared: Strategy · RPG · Medieval

Master of Command
Shared: Strategy · Real Time Tactics · Strategy RPG

Heroes of Might and Magic: Olden Era
Shared: Strategy · RPG · 4X

Total War: THREE KINGDOMS
Shared: Strategy · Historical · War

Heroes' Vow: Three Kingdoms
Shared: Strategy · RPG · Strategy RPG

Age of Wonders 4
Shared: Strategy · 4X · RPG

Three Kingdoms: Innovatory
Shared: Strategy · Real Time Tactics · Wargame

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

Mount & Blade: Warband
Shared: RPG · Strategy · Medieval

Total War: MEDIEVAL II – Definitive Edition
Shared: Strategy · Medieval · Historical

Foxhole
Shared: Wargame · Strategy · Military

Sid Meier’s Civilization® VI
Shared: Strategy · 4X · Historical

The DioField Chronicle
Shared: Strategy · RPG · Strategy RPG

Hearts of Iron IV
Shared: Strategy · Military · Historical

Heroes of the Three Kingdoms 7
Shared: Strategy · Strategy RPG · 2D

Wargame: Red Dragon
Shared: Strategy · Wargame · Military