An upgrade tree that keeps unfolding: cards, astronomy, mining, and a few mechanics you will not see coming.
Everything Upgrade Tree, or EUT, is one of the largest incremental games on Roblox, with more than 42 million visits. It opens as a modest tree of upgrades and keeps growing sideways, handing you entire new systems as you progress: cards to collect, astronomy to chart, mining to automate, and stranger things further in. The developers describe it as built for an idle game audience, and it plays that way. Numbers accumulate while you sit in the server, and single-spot autoclickers are explicitly allowed. Worth knowing before you start: the game uses flashing imagery, so skip it if that is a problem for you. Free to play.
The Roblox upgrade tree crossed with real incremental maths, and progression that is yours alone.
Swing at rock, sell ore, buy the upgrade that swings faster, and watch the mine outgrow you.
Hack systems for Data, craft processors, and reboot the whole network for a better one.

Watch a swarm of tiny slammers hurl themselves at a planet and mine it to pieces. SLAM, CRACK, REPEAT.

The ultimate tiny idle RPG — pixel heroes that grind, loot, and level up right from your taskbar.
Drain the pool one click at a time, find what was living at the bottom, then go find a bigger pool.

Drill into a meteor crater — mine ores, unlock upgrades, uncover what happened to the Moles before you.

Fill your quota or die — mine increasingly absurd amounts of coal for your evil corporation.
Yes, Everything Upgrade Tree is free to play.
Everything Upgrade Tree is available on Roblox.
Everything Upgrade Tree is an incremental idle game, featuring free, skill tree, collection and mining.