Merge World

Merge World is a building game run on merge-three rules. Three identical items combine to create a building, fairy workers then construct it, and merging buildings together produces bigger ones. The developer describes the aim as shaping the world to your liking and filling it with buildings until it becomes a paradise, with the fairies helping along the way.

There are two features beyond the basic merge. The highest-level building you make can be handed in at a depository in exchange for rewards. And rainbow flasks, which you also merge, act as substitutes in merges, so a flask can stand in for an item you are missing. Materials are the starting point for everything, according to the developer. No control instructions are given, so the input method is left for you to find once the game opens.

Merge three identical items to create a building. Put fairy workers to work constructing it, then merge buildings to make larger ones. When you have a building at the highest level, submit it to a depository to collect a reward. Merge rainbow flasks too, and use them as stand-ins in merges. The developer does not say which device or input carries out these actions.

The developer does not list the controls for this game. It runs inside the frame above, so a click or a tap on the game is the place to start.

Rainbow flasks substitute in merges, so hold one back for a group that is short of an identical item instead of spending it on a group you could finish anyway. Rewards come from submitting the highest-level buildings to depositories, so climbing the building levels is where the payoff lies.

A merge-three building puzzle in a landscape frame. Features named by the developer are fairy workers, depositories that pay out rewards, and rainbow flasks used as substitutes. No controls are listed.

Block Merge City also turns three identical pieces into buildings, placing blocks from a queue, and Merge Blocks applies the same three-to-merge rule on a 5x5 board.