Games like Nibû
Games like Nibû include They Are Billions, The Riftbreaker, Warhammer 40,000: Dawn of War III, Company of Heroes, and Aliens: Dark Descent. We matched them by the tags players give Nibû on Steam (Strategy, Violent, Action, Adventure, and RTS): closest matches first, and among equally close ones the better-known games.

They Are Billions
Shared: Strategy · Base Building · RTS

The Riftbreaker
Shared: Base Building · Tower Defense · Survival

Warhammer 40,000: Dawn of War III
Shared: Strategy · RTS · Action

Company of Heroes
Shared: Strategy · RTS · Action

Aliens: Dark Descent
Shared: Strategy · Action · RTS

Until We Die
Shared: Strategy · Survival · Action

Once Human
Shared: Action · Survival · Strategy

PUBG: BATTLEGROUNDS
Shared: Survival · Action · Strategy

Mindustry
Shared: Strategy · Tower Defense · Base Building

Command & Conquer Red Alert™ 2 and Yuri’s Revenge™
Shared: Strategy · Action · RTS

Thronefall
Shared: Strategy · Tower Defense · Action

Brutal Legend
Shared: Action · RTS · Violent

DG2: Defense Grid 2
Shared: Strategy · Action · Tower Defense

Diplomacy is Not an Option
Shared: RTS · Base Building · Strategy

Age of Darkness: Final Stand
Shared: Strategy · Tower Defense · RTS

Escape From Duckov
Shared: Action · Adventure · Survival

Taur
Shared: Strategy · Action · Tower Defense

Command & Conquer™ Red Alert™ 3
Shared: Strategy · RTS · Action

Warhammer 40,000: Dawn of War - Anniversary Edition (Classic)
Shared: Strategy · RTS · Base Building

METAL GEAR SURVIVE
Shared: Action · Survival · Adventure

Infection Free Zone
Shared: Strategy · Base Building · RTS

ARK: Survival Evolved
Shared: Survival · Adventure · Action

The Alters
Shared: Strategy · Base Building · Survival

Cossacks 3
Shared: Strategy · RTS · Base Building