Merge Cosmos
An idle merge tycoon: drag matching objects together to forge stardust into planets, stars, black holes and a whole universe. It earns while you're away.
About this game
Merge Cosmos is an idle merge game set in space. Your board starts with two specks of stardust. Drag one onto the other and they merge into a pebble. Two pebbles make an asteroid, two asteroids a comet, and so on up a ladder of twenty objects: moons, lava worlds, ocean worlds, ringed giants, suns, nebulae, pulsars, black holes, quasars and galaxies, all the way to a whole universe. Everything on the board earns coins every second, and every level earns three times what the level below it does, so each merge pays. Spend your coins on new objects, on free deliveries that arrive faster and at higher levels, and on auto-merge, which merges your lowest pair for you. The board has twenty spaces, so the real game is keeping room to merge: recycle the odd one out, buy the right level, and keep pairs coming. It keeps going when you don't. Close the tab and your cosmos keeps earning at its full rate for up to two hours, longer with the Long Shift upgrade, and a welcome-back card shows what you made. Once you reach a Red Dwarf you can go supernova: the board restarts, but you collect stars, and every star adds 25% to everything you earn for good. The bigger the run, the more stars it pays. Every object you find goes into your atlas, which keeps all twenty even through a supernova. Play with a mouse, a touch screen or the keyboard. No download, no sign-up and no ads to watch: your cosmos is saved in your browser.
Controls
Drag an object onto a matching one to merge them. You can also tap one object and then another.
- Drag onto an empty space to move an object, or onto a different object to swap them.
- Drag onto Recycle to sell an object for coins.
- Keyboard: the arrow keys move, Space picks up and drops, B buys, U opens upgrades, A opens the atlas and Delete recycles.
How to play
Merge matching objects to climb from stardust to a whole universe.
Merging
- Drag two of the same object together and they become one of the next level.
- There are twenty levels. Each one earns three times as much as the one below.
Coins
- Everything on the board earns coins every second.
- Buy new objects with the Buy button. Each one costs a little more than the last.
- A free object is delivered every few seconds while there is space.
Upgrades and supernovas
- Upgrades make deliveries faster and richer, merge pairs for you, and let you earn for longer while away.
- From a Red Dwarf (level 12) you can go supernova: the board restarts, and you earn stars that add 25% to all income for good.
Details
- Category
- Puzzle
- Platform
- Web browser
- Rules
- Full rules
- Price
- Free
- Tags
- casual idlemerge1 player
More games like this
Number Rush
Sixty seconds of mental arithmetic. Everyone gets the same questions in the same order today, so the score actually means something.
Puzzle
Brain Benchmark
Five quick brain tests: reaction time, aim, number memory, visual memory and the chimp test. Take today's benchmark and share your score out of 100.
Puzzle
Featured
Pipes
Turn every pipe until the whole network lights up from one source. Each board carries a proven minimum, so there is always a best answer to chase.
Puzzle
Slide Maze
Swipe and the block slides until it hits something. Collect all three gems, reach the exit, and every maze tells you the fewest moves that can do it.
Puzzle
Featured
Tray Match
Tap tiles off a stack into a tray of seven. Three alike clear together — but fill all seven with no match and the board is over.
Puzzle
Tile Order
Slide the numbered tiles back into order. On the small boards every route has been searched, so the number on screen is the true fewest moves — and matching it is a perfect run.
Puzzle
Featured
Shikaku
Cut the grid into rectangles. Each one holds a single number, and that number is exactly how many squares the rectangle covers.
Puzzle
Depot — Crate Puzzle
Push every crate onto a pad in a warehouse where nothing can be pulled back. Then build a depot of your own — it only publishes once a solver has proved it.
Puzzle