snakebird
Pushy Worm (Sid Fish Games)
"Your kids are hungry. Use your puzzle skills to bring them back food." - Author's description Download on itch.io (Windows)
snakebird
windows
Volcano Snek (Cameron H)
"Slither around and bonk walls to raise the lava level." - Author's description Download on itch.io (Windows, Mac, Linux)
puzzlescript
Avis Anguis (Terzalo)
"A few weeks ago I recreated Snakebird's mechanics in PuzzleScript." - Author's description Play here (Browser)
commercial
Snakebird (Noumenon Games)
"What is the longest possible length a bird can be?" - Author's description Purchase for $6.99 on Steam (Windows)