Here's a bunch of mods that are either currently unsupported or are in need of an update.

Fins and Tails (update)

Terrain Incognita (update)

Mowzie's Mobs (request)

Glow Bats (request)

EvilCraft (request)

Turtlemancy (request)

Gaia Dimension (request)

Kray's Magic Candles (request)

Nether Soups Mod (request)

Endless Ocean: Adventures (request)

Greek Fantasy (request)