Free games like MMO98
Below are 9 free-to-play Steam games similar to MMO98, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like MMO98 page.
Ranked picks
- 1

AdVenture Capitalist
Free-to-play alternative to MMO98 — no purchase or trial window.
Welcome, eager young investor, to AdVenture Capitalist! Arguably the world's greatest Capitalism simulator!
- 2

Clicker Heroes
Free-to-play alternative to MMO98 — no purchase or trial window. Shares Simulation and Strategy with MMO98.
Click your way through hordes of monsters, earn gold, and recruit quirky heroes with powerful skills. Progress even while you're idle, and watch the numbers climb into the absurd. It’s a never-ending journey of clicks, crits, and colossal damage.
- 3

NGU IDLE
Free-to-play alternative to MMO98 — no purchase or trial window. Shares Simulation with MMO98.
NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!
- 4

Unnamed Space Idle
Free-to-play alternative to MMO98 — no purchase or trial window. Shares Simulation with MMO98.
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.
- 5

Revolution Idle
Free-to-play alternative to MMO98 — no purchase or trial window. Shares Simulation with MMO98.
Join an experience where each revolution takes you further into the unknown! Revolution Idle challenges you to multiply your accumulators to reach unimaginable heights. Will you manage to reach infinity?
- 6

Magic Archery
Free-to-play alternative to MMO98 — no purchase or trial window. Shares Simulation with MMO98.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 7

Midas Gold Plus - Idle Clicker
Free-to-play alternative to MMO98 — no purchase or trial window.
Discover Midas Gold Plus, an engaging idle clicker set in a mythical world! Harness King Midas' golden touch, build a legendary city, and unlock powerful champions. Master unique gameplay styles, explore pet battles, and conquer rival cities. Delve into this ancient tycoon adventure today!
- 8

Wizard And Minion Idle
Free-to-play alternative to MMO98 — no purchase or trial window. Shares Strategy with MMO98.
Train your stats, cast spells, feed your minion, defeat monsters and bosses, raise demons, craft gems, go fishing and so much more in Wizard and Minion Idle--WAMI. This free to play, solo developed, Idle/active hybrid game has flexible pacing for long-time play-ability.
- 9

Upload Labs
Free-to-play alternative to MMO98 — no purchase or trial window. 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