Games like Democracy 2
Games like Democracy 2 include Democracy 3, Age of History II, The Political Process, Plague Inc: Evolved, and Victoria 3. We matched them by the tags players give Democracy 2 on Steam (Political Sim, Simulation, Strategy, Indie, and Turn-Based): closest matches first, and among equally close ones the better-known games.

Democracy 3
Shared: Political Sim · Simulation · Strategy

Age of History II
Shared: Strategy · Political Sim · Simulation

The Political Process
Shared: Political Sim · Simulation · Strategy

Plague Inc: Evolved
Shared: Simulation · Strategy · Indie

Victoria 3
Shared: Simulation · Strategy · Political Sim

Democracy 4
Shared: Political Sim · Strategy · Simulation

Crusader Kings II
Shared: Strategy · Political Sim · Simulation

Beholder
Shared: Political Sim · Strategy · Simulation

Game Dev Tycoon
Shared: Simulation · Strategy · Indie

Long Live The Queen
Shared: Political Sim · Simulation · Indie

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Indie

RIOT: Civil Unrest
Shared: Simulation · Strategy · Political Sim

Oriental Empires
Shared: Simulation · Strategy · Indie

Imperator: Rome
Shared: Strategy · Simulation · Political Sim

Fate of the World
Shared: Political Sim · Strategy · Simulation

Tropico 6
Shared: Simulation · Strategy · Political Sim

Sid Meier’s Civilization® VI
Shared: Strategy · Turn-Based · Simulation

Crisis in the Kremlin
Shared: Political Sim · Strategy · Simulation

Mini Motorways
Shared: Simulation · Strategy · Indie

Beholder Conductor
Shared: Political Sim · Indie · Simulation

911 Operator
Shared: Simulation · Strategy · Indie

Banished
Shared: Strategy · Simulation · Indie

Unity of Command II
Shared: Strategy · Simulation · Turn-Based

China: Mao's legacy
Shared: Political Sim · Simulation · Strategy