Jigsaw Puzzle Fever is a casual indie game from NYX Digital Ltd. The game presents players with 75 puzzles, each playable across four difficulty settings: 48 pieces, 48 pieces with rotated pieces, 108 pieces, and 108 pieces with rotated pieces. Gameplay involves selecting and placing puzzle pieces displayed on screen, with options to filter for edge pieces, show a grid, receive help placing a single piece, or reveal the completed image. Some puzzles introduce specific challenges like timers or restrictions on hints and peeking. Completing the initial 10 puzzles unlocks subsequent levels, leading to the full 75-puzzle roster. Trophies and leaderboards are integrated for competitive and achievement-based play.