Games like Nebula Miner
Games like Nebula Miner include Oxygen Not Included, IXION, Space Haven, Dyson Sphere Program, and Prison Architect. We matched them by the tags players give Nebula Miner on Steam (Casual, Strategy, Space, Resource Management, and Economy): closest matches first, and among equally close ones the better-known games.

Oxygen Not Included
Shared: Colony Sim · Resource Management · Strategy

IXION
Shared: Space · Strategy · Resource Management

Space Haven
Shared: Strategy · Colony Sim · Space

Dyson Sphere Program
Shared: Space · Resource Management · Strategy

Prison Architect
Shared: Strategy · Colony Sim · Management

RimWorld
Shared: Strategy · Colony Sim · Management

Stellaris
Shared: Strategy · Space · Exploration

Frostpunk
Shared: Strategy · Resource Management · Colony Sim

Game Dev Tycoon
Shared: Strategy · Casual · Management

The Alters
Shared: Strategy · Management · Exploration

X4: Foundations
Shared: Space · Strategy · Exploration

Factorio
Shared: Resource Management · Strategy · Casual

Cities: Skylines
Shared: Strategy · Management · Economy

Kingdoms and Castles
Shared: Resource Management · Strategy · Colony Sim

SPORE™
Shared: Casual · Colony Sim · Space

Planetbase
Shared: Space · Strategy · Colony Sim

Manor Lords
Shared: Strategy · Resource Management · Management

The Crust
Shared: Space · Resource Management · Strategy

Mad Games Tycoon
Shared: Strategy · Casual · Economy

Cookie Clicker
Shared: Casual · Economy · Management

Captain of Industry
Shared: Resource Management · Strategy · Economy

Cosmoteer: Starship Architect & Commander
Shared: Space · Strategy · Exploration

Against the Storm
Shared: Strategy · Resource Management · Management

Shelldiver
Shared: Casual · Resource Management · Management