Single-player games like Mars Inc 98
Below are 9 single-player Steam games similar to Mars Inc 98, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Mars Inc 98 page.
Ranked picks
- 1

OurClicker
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Indie with Mars Inc 98.
From the creators of OurLife and OurCoven, OurClicker is a brand new clicker game that puts you in charge of an up-and-coming Game Development Studio where all you do is... CLICK!
- 2

Silicon Architect
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Indie with Mars Inc 98.
An incremental hardware engineering game with a Windows XP themed UI. Configure and optimize processor components, build your own CPU, and run automated benchmarks. Harvest telemetry and gather research funding to unlock new hardware, and scale your processing power.
- 3

Mars Clicker
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Indie with Mars Inc 98.
Click crystals until they crack. Automate the grind. Reset everything on purpose for a permanent power spike. Mars Clicker is an idle clicker / incremental game where every prestige run makes the next one faster — and ACE will remind you it's for your own efficiency.
- 4

Astral Outpost
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Inc 98.
Build stations above picky planets, match modules to what the locals actually want, and grow a trade empire that earns while you're away. Court the factions or cross them on the road from your first rattling fusion can to a megastructure that tames a black hole.
- 5

Cosmic Ascent
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Indie with Mars Inc 98.
Build and expand an orbital station in this idle/incremental space colony sim. Manage crew, resources, refinery chains, research and ship expeditions as you progress from Earth orbit toward new planets.
- 6

Galacto
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Indie with Mars Inc 98.
A cozy idle game that lives at the bottom of your screen. Run a space gas station, refuel ships, hire bots, chain combo for fat payouts, and rebuild an outpost into the busiest stop in the galaxy!
- 7

MORS
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Strategy and Indie with Mars Inc 98.
Build an automated factory on a true-scale Mars streamed from real NASA terrain. Mine, smelt and belt resources, run trains between outposts, master chemistry, and grow from a lone lander into a planet-spanning industry while the real Martian weather does its worst.
- 8

Void Core
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Inc 98.
Start as a microscopic speck, become the end of everything. Void Core is a minimalist sci-fi idle game where you control a black hole. Harvest matter, bend spacetime to automate your growth, and consume entire galaxies. Consume. Grow. Evolve.
- 9

Bobos FunZone
Single-player alternative to Mars Inc 98 — playable solo, no multiplayer required. Shares Indie with Mars Inc 98.
Step into the haunting realm of Bobo's Funzone, in this horror/puzzle adventure. Your mission: find your daughter, who was attending a birthday party here. Navigate the eerie corridors, unearth what happend, and be careful and cautious as Bobo is about.