Spacebase DF-9 Alternatives

RimWorld follows three survivors from a crashed space liner as they build a colony on a frontier world at the rim of known space. Inspired by the space western vibe of Firefly, the deep simulation of Dwarf Fortress, and the epic scale of Dune and Warhammer 40,000.

Dwarf Fortress is a single-player fantasy simulator. You can control a dwarven outpost or an adventurer in a randomly generated, persistent world. The world is procedurally generated with distinct civilizations spanning centuries of detailed history, multitude of towns, bodies...

In this city-building strategy game, you control a group of exiled travelers who decide to restart their lives in a new land. They have only the clothes on their backs and a cart filled with supplies from their homeland.

Build a secret base, gain notoriety by completing daring missions, repel the forces of justice in real-time combat, and develop evil super-weapons to complete your nefarious master plan. As a malevolent mastermind bent on achieving global domination, through the construction of...

Discover your evil side as you build your own underground kingdom. Carve out a living, breathing world and attract a host of devilish creatures to swell the ranks of your dark hoards. Form an alliance with the Horned Reaper and expand your empire in your quest to reach the...

Oxygen Not Included is a space-colony simulation game. Manage your colonists and help them dig, build and maintain a subterranean asteroid base. You'll need water, warmth, food, and oxygen to keep them alive, and even more than that to keep them happy.

Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little characters called "Bricktrons".

Build and manage a Maximum Security Prison. As the sun casts it’s early morning rays on a beautiful patch of countryside the clock starts ticking. You’ve got to crack on and build a holding cell to detain the job­ lot of maximum security prisoners that are trundling to your...

Space Haven is a spaceship colony sim, where you manage resources and crew members in order to build and keep your spaceship. Then you'll be able to explore the universe with rewards and perils. Website: https://bugbyte.fi/spacehaven/.

Gnomoria is a sandbox village management game where you help lead a small group of gnomes, who have set out on their own, to thrive into a bustling kingdom!.

Guide a group of space settlers trying to establish an outpost on a remote planet. Grow food, collect energy, mine resources, manufacture bots, and build a fully self-sufficient colony.

Craft The World is a unique sandbox strategy game, the mix of Dungeon Keeper, Terraria and Dwarf Fortress. Explore a random generated world populated by dangerous creatures, build a dwarf fortress, gather resources, and craft all the items, weapons, and armor you need.