MMO / RTS programming games share one promise: the interesting action happens after your instructions run. This page collects the 5 mmo / rts titles in the catalog and ranks them by rating so you can compare the strongest options first.
The best starting points here are Screeps, Adventure Land and The Schemaverse. They span JavaScript, Assembly and SQL and usually sit around advanced and intermediate difficulty. Pick this genre when you want practice that feels like building a working system, not answering isolated quiz prompts.
Use these pages as a filter before the full catalog: choose the genre for the kind of thinking you want to train, then open the individual game pages for screenshots, quick facts, similar games and the best place to play.
Small genres are still useful when the intent is specific. A one-game category can be the exact answer for someone looking for API-first play, command-line control or a particular style of automation puzzle, especially when the full catalog would hide that niche among broader puzzle games.
Every mmo / rts programming game in the catalog — 5 titles, ranked by rating. Browse the full catalog →

Screeps: World
OnlinePaidest. 2016★4.7 (318)An open-source MMO RTS where your units are driven by JavaScript you write — and the world keeps running 24/7, even while you sleep.

Adventure Land
OnlinePaidest. 2018★4.3 (132)A browser MMORPG where you can play by hand — or open the console and code up to four characters in JavaScript.
The Schemaverse
OnlineFreeest. 2012★4.3 (24)A space-strategy game implemented entirely inside PostgreSQL — command your fleet with raw SQL, or write PL/pgSQL AI to play for you.

Much Assembly Required
OnlineFreeest. 2017★4.2 (34)An open-source browser MMO where you program robots in assembly to mine and survive a shared world.

Deepest World
OnlineFreeest. 2024★4.2 (44)A browser sandbox MMORPG where your character is driven by JavaScript you write in an in-game editor — automate the grind, then go deeper.