Single-player games like MMO98
Below are 15 single-player Steam games similar to MMO98, 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 MMO98 page.
Ranked picks
- 1

Military Incremental Complex
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
Make weapons, make money. An active incremental game where you amass as much money as you can by starting a Military Industrial Complex company. Produce multiple different weapons, research upgrades, manipulate the stock market, and lobby the government for favors.
- 2

Execute
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
Kill everyone in the world with a guillotine… on a cursed Win98 desktop.
- 3

FACEMINER
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
Build a biometric data harvesting empire from scratch in FACEMINER, the hardcore thriller clicker set in 1999. Classify data, upgrade mining infrastructure, and scale up your A.I. surveillance empire to obscene ends in this creepy narrative-driven incremental management sim with a dystopian twist.
- 4

Particul
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
Click to mine particles and watch your pile grow. Turn resources into profit, automate extraction, research new technologies and trade. Can you mine the rarest particle and ascend? There is just one way to find out.
- 5

Idling Gears
Single-player alternative to MMO98 — playable solo, no multiplayer required.
Click! Place gears, click! Make money, click! Place more gears, click! Make even more money, click, click and above all click!
- 6

Smash Hit Museum
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Simulation with MMO98.
Smash stones. Collect artifacts. Build the world’s most profitable museum. A short clicker game set in the archeology room of a museum. Build up your collection and Upgrade until you break it.
- 7

Gamblers Table
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
Gamblers Table is an incremental game where you toss coins to earn money. Buy bigger and better coins, unlock upgrades and hire little helpers to automate the process and take care of all the busy flipping work for you. Simple. Satisfying. Strangely compelling...
- 8

Upload Labs
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Simulation with MMO98.
A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect
- 9

MMORPG Tycoon 2
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
MMORPG Tycoon 2 is a single-player world-builder game about creating the greatest MMORPG of all time – yours.
- 10

Cookie Clicker
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy and Simulation with MMO98.
An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.
- 11

Unicycle Pizza Time!
Single-player alternative to MMO98 — playable solo, no multiplayer required.
Uh oh, seems like your delivery bike got stolen, but the pizzas need to keep being delivered!
- 12

Forge Industry
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Strategy with MMO98.
Forge your destiny as a blacksmith! Automate your workshops, optimize your supply chain, research new materials, craft legendary weapons, and cast your place in the world.
- 13

Overtime Anomaly
Single-player alternative to MMO98 — playable solo, no multiplayer required.
You're working overtime again in your dead-end job, whilst your boss is on vacation. However, strange things are happening throughout the office. Complete your daily work tasks, explore your office, report any anomalies you may find, and you may just find yourself getting a promotion...
- 14

My Virtual Friend
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Simulation with MMO98.
Feeling lonely? Not anymore with My Virtual Friend, a desktop pet/idler where different characters can keep you company. Take care of them, buy them new outfits, play games with them, or just let them sit back and follow along with whatever you're doing.
- 15

Kyoto Anomaly
Single-player alternative to MMO98 — playable solo, no multiplayer required. Shares Simulation with MMO98.
You find yourself trapped in the endless maze of Kyoto's backstreets, trying to reach the temple of Hōkan-ji before the main tourist rush. Inspect the street for anomalies, choose the right path, and reach your destination... or be trapped forever.