Mergis is a compact merge puzzle: matching blocks combine into higher values, and the board fills as you play. Every merge buys back a square; every placement without one costs you.
It's the kind of puzzle that's easy to start and difficult to play well, because the right move is often the one that keeps the board tidy rather than the one that scores.
Merge low-value blocks as soon as they appear and keep high values grouped in one corner, so the working area stays open.
It's score-based — you play until the board fills, aiming for the highest value you can build.
Yes — tap and drag. Nothing to install.