Step into a misty marshland and match wetland-themed icons such as dragonflies, frogs, water lilies, fireflies, reeds, and swamp bubbles. Each icon is shrouded in a light mist. The game features a “mist expansion” mechanic: at the start of each level, parts of the board are covered by mist, obscuring the specific patterns of the icons within so that only their outlines are visible. You must first clear icons at the edge of the mist; for every pair cleared, the mist recedes by one tile, gradually revealing more of the board.
The gameplay follows traditional “Connect” rules: tap two icons to match them if they share the same pattern, the connecting line makes no more than two right-angle turns, and the path is not blocked by other icons or misty areas. Paths cannot pass through tiles where the mist has not yet cleared (due to poor visibility). To complete a level, you must clear all icons and dispel all the mist.
Additionally, the “Firefly Guide” feature randomly highlights a pair of matchable icons after 5 seconds of inactivity (limited to 3 uses per level). Every 20 levels, there is a “Lighthouse in the Mist” bonus level: the board has minimal mist, but all icons randomly swap positions every 10 seconds, requiring quick memorization.
Level Design: The 1,840 levels are divided into eighteen chapters (the first four chapters contain 100 levels each, while the remaining fourteen contain approximately 103 levels each). Board sizes scale up from 6×6 to 12×12. Levels 1–300 use a 6×6 board with 8 icon types; levels 300–700 use an 8×8 board with 12 types; levels 700–1,200 use a 10×10 board with 16 types; and levels 1,200–1,840 use a 12×12 board with 20 types. The time limit is 105 seconds per level, reduced to 75 seconds in the later stages (after level 1,600). In later stages (beyond Level 1600), “Miasma Whirlpools” appear; these tiles regenerate fog—even if you have previously cleared it—requiring you to match adjacent icons again to disperse it. Every 80 levels features a “Mist Lord” boss stage: the fog does not recede automatically but instead retreats by one row only after three matches are made, presenting a higher level of difficulty.
