Halfglow

A little lantern spirit glows half gold and half blue, and it can swap day for night.

By day the sun blocks are solid and the moon blocks are only ghosts. Press swap and they trade places: the wall in front of you fades, a bridge appears under your feet, the floor you stood on is gone. Jump first, swap in mid-air and land on a platform that was not there a moment ago.

• 20 bite-size levels, 20 to 90 seconds each: spikes, ledges, springs, low ceilings, trapdoors, a chimney, gates and a finale
• Three stars per level: finish, collect every gem, beat the par time
• Tight controls: coyote time, jump buffering, a short hop or a full jump depending on how long you hold
• Lanterns save your place (and whether it was day or night); respawn is instant
• Daily level: the same level for everyone today, with its own best time
• Squash and stretch, dust, screen shake, synthesised sound and a tune that turns minor at night
• Keyboard, gamepad or touch; no download, no account; progress is saved in your browser

Every level is finished, with every gem, by a search bot in our tests, so every level can be done.

Code and text written with AI assistance; checked by PN Scripts with automated tests. The world is drawn and the sound synthesised by code.