This is Merge Number Cubes, a game where you need to merge two equal numbers to double them, you can spawn cubes with the generator, when two cubes are merged, the generator will spawn the same number but doubled (ex. two 32 can form a 64)

doesn't require installation (it's HTML5) 

no donations or payments needed (100% free!!)

is fun to play on any PC (you just need a good browser)

you can access any time with this link: Merge Number Cubes by MZC GameDev (itch.io)

here's some screenshots

Try to make the biggest number possible!!