The Forge tutorial kit, addressed from a game as Forge/kit/<name>.

hero.png    a sprite sheet, 8 columns of 32 x 48, facing right:  idle, walk x4, jump, fall, hit
enemy.png   a sheet, 4 columns of 32 x 32, flapping
tiles.png   a tile sheet, 4 columns of 32 x 32:  grass, dirt, stone, brick
coin.png key.png crate.png door.png spike.png ship.png shot.png rock.png target.png   stills
yard.png hall.png   painted rooms, 720 x 480, for the adventures
jump.wav coin.wav shot.wav hit.wav click.wav door.wav   clips
loop.ogg    eight seconds of music that loops
clip.mkv    twelve seconds of 720 x 480 video at 24 frames a second:  a door opens at 3 s, a target rises at 6 s, a hand reaches at 9 s
fox.glb     an animated model (see LICENSE)