Games like Oil Wars
Games like Oil Wars include Touhou Big Big Battle, Dota Underlords, Where Winds Meet, Idle Champions of the Forgotten Realms, and Cell to Singularity - Evolution Never Ends. We matched them by the tags players give Oil Wars on Steam (Free to Play, Strategy, Simulation, Adventure, and Casual): closest matches first, and among equally close ones the better-known games.

Touhou Big Big Battle
Shared: Strategy · Free to Play · Early Access

Dota Underlords
Shared: Free to Play · Strategy · Casual

Where Winds Meet
Shared: Free to Play · Adventure · Strategy

Idle Champions of the Forgotten Realms
Shared: Free to Play · Strategy · Adventure

Cell to Singularity - Evolution Never Ends
Shared: Free to Play · Simulation · Casual

The Sims™ 4
Shared: Free to Play · Simulation · Casual

SMITE®
Shared: Free to Play · Strategy · Simulation

Marvel Rivals
Shared: Free to Play · Adventure · Strategy

Once Human
Shared: Free to Play · Adventure · Strategy

Aimlabs
Shared: Free to Play · Simulation · Adventure

911 Operator
Shared: Strategy · Simulation · Casual

War Thunder
Shared: Free to Play · Simulation · Free To Play

Plague Inc: Evolved
Shared: Strategy · Simulation · Casual

Fishing Planet
Shared: Free to Play · Simulation · Adventure

SuchArt: Creative Space
Shared: Free to Play · Simulation · Adventure

Mini Motorways
Shared: Strategy · Simulation · Casual

BidKing
Shared: Strategy · Simulation · Casual

Ultimate Epic Battle Simulator 2
Shared: Simulation · Strategy · Real Time Tactics

Game Dev Tycoon
Shared: Simulation · Strategy · Casual

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Adventure

The Scroll of Taiwu : Beyond The Dome
Shared: Strategy · Adventure · Simulation

Professional Fishing
Shared: Free to Play · Simulation · Casual

EmergeNYC
Shared: Simulation · Early Access · Strategy

SMITE 2
Shared: Strategy · Adventure · Casual