Mac OS X Softwares to Built-in Level Editor

Nikki and the Robots is a charming 2D platformer game featuring physics-based puzzles and a built-in level editor, all presented in a retro-inspired 8-bit aesthetic.

Secret Maryo Chronicles (SMC) is a vibrant, free, and open-source 2D platformer that pays homage to classic 8-bit and 16-bit era games. It features a wide variety of levels, power-ups, and enemies, offering a rich and engaging experience for players of all ages. With a built-in level editor, it also encourages community-driven content creation.

Frogatto & Friends is a charming open-source 2D platformer with a beautiful pixel art aesthetic and adventure game elements. Explore a vibrant world as Frogatto, solve puzzles, battle enemies, and uncover a captivating story, all while enjoying a classic side-scrolling experience.

Roblox is a global platform uniting people through play. It is powered by users, offering an ever-expanding universe of immersive experiences created by a community of millions of developers and players.

SuperTux is a charming, free, and open-source 2D platformer reminiscent of classic jump-and-run games. Join Tux the penguin on an epic adventure through diverse worlds, facing numerous challenges to rescue Penny.

Super Meat Boy is a brutally challenging platformer where players control a living cube of meat trying to rescue his bandage girlfriend from the evil Dr. Fetus. Navigate hundreds of levels filled with buzzsaws, needles, and salt, requiring precise movements and split-second reflexes.