Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

Ocean
StarNinjas

Adds coral reefs, fish, decorative ocean blocks and much more!

Projectiles
Noodlemire

Adds various projectile weapons which work based off of MT 5.3.0's new collision info provided to objects' on_step functions.

Poly Decor
PolySaken

My spin on decorative stuff.

Plastic Box
Starbeamrainbowlabs

Adds a recolourable plastic box. Fork of @cheapie's version with improvements.