Games like Planet Pioneers
Games like Planet Pioneers include Dorfromantik, ISLANDERS, Terra Nil, ISLANDERS: New Shores, and Banished. We matched them by the tags players give Planet Pioneers on Steam (City Builder, Procedural Generation, Relaxing, Puzzle, and Strategy): closest matches first, and among equally close ones the better-known games.

Dorfromantik
Shared: City Builder · Relaxing · Puzzle

ISLANDERS
Shared: City Builder · Relaxing · Strategy

Terra Nil
Shared: Relaxing · City Builder · Strategy

ISLANDERS: New Shores
Shared: City Builder · Relaxing · Strategy

Banished
Shared: City Builder · Strategy · Colony Sim

Mini Motorways
Shared: Strategy · Puzzle · Relaxing

Pan'orama
Shared: City Builder · Relaxing · Procedural Generation

Frostpunk
Shared: City Builder · Strategy · Colony Sim

Kingdoms and Castles
Shared: City Builder · Colony Sim · Strategy

Slipways
Shared: Puzzle · Strategy · Relaxing

The Universim
Shared: City Builder · Colony Sim · Strategy

TerraScape
Shared: Puzzle · Turn-Based Strategy · Procedural Generation

Foundation
Shared: City Builder · Strategy · Relaxing

IXION
Shared: City Builder · Strategy · Colony Sim

Tile Cities
Shared: City Builder · Strategy · Puzzle

Preserve
Shared: Puzzle · City Builder · Turn-Based Strategy

Townscaper
Shared: Relaxing · City Builder · Building

Fabledom
Shared: City Builder · Relaxing · Colony Sim

Town to City
Shared: City Builder · Relaxing · Strategy

Manor Lords
Shared: City Builder · Strategy · Colony Sim

Cities: Skylines
Shared: City Builder · Strategy · Building

Reus 2
Shared: City Builder · Puzzle · Colony Sim

Farlanders
Shared: City Builder · Turn-Based Strategy · Procedural Generation

Dwarf Fortress
Shared: City Builder · Strategy · Colony Sim