Extra Constellations

It’s written in the stars!

MAKE SURE TO DISABLE THE ‘ONLY OPHIUCHUS’ MOD IF YOU INSTALL THIS!
If you only want Ophiuchus on the other hand, check this out! Link

Forewarning
This mod admittedly isn’t being worked on at the moment, I might work on it again at some point, but for now it’ll remain like this. It’s very playable, but just we won’t be seeing any fixes for bugs or changes anytime soon.

This mod is currently very incomplete, if you want to help code some of your own constellations, or want to create some costumes, don’t feel afraid to give a hand!

The plan of this mod is to add in all constellations to the game as their own items.
All item sprites are complete, but coding and costumes are still to come.

Currently included items

Zodiac Signs

• Ophiuchus – On pickup, Isaac will receive a +1.5 damage up, but will be given permanent wiggly tears.
• Cetus – Blast water directly at an enemy when charged. Only found in secret rooms.

Ursa Major Constellations

• Draco – Isaac now shoots fire!
• Ursa Major – A simple damage up item.

Perseus Constellations

• Cassiopeia – 100% Charm Tears!
• Cepheus – Champions and bosses will always drop a pickup on death.
• Pegasus – Isaac can now fly, and will gallop at a faster pace.
• Perseus – Isaac gains a floating friend who will turn enemies to stone.

Hercules Constellations

• Corvus – On hit, isaac has a 50% chance to have a crow help him fight.
• Sagitta – Shot speed waaaay up.
• Serpens – A little wiggling buddy that helps you fight.
• Sextans – Isaac has a chance to fire two extra tears at 30° angles.

Orion Constellations

• Monoceros – Isaac has a chance to become enraged for a few seconds when hit.

Heavenly Waters Constellations

• Columba – Enemies won’t fight for a couple seconds when you enter a room.
• Eridanus – Isaac’s tears leave a trail of creep!
• Pyxis – Damage up, but it becomes weaker for every room explored.
• Vela – Tears up, and Isaac receives recoil from his tears.

Bayer Constellations

• Chamaeleon – When stood still, Isaac will be camoflagued, and enemies will become unable to see him.
• Musca – Attack flies will emerge from enemies when they die.
• Phoenix – On death, Isaac will be reborn and set enemies around him on fire.

Le Caille Constellations

• Fornax – Fire is spewed out by isaac at various angles while he fires.
• Horologium – Enemies will slow down significantly just before they touch isaac, making it a tad easier to dodge.
• Microscopium – Enemies have a chance to shrink for a couple seconds when Isaac gets hit.
• Norma – Damage and range up in exchange for tears moving with 90° turns.
• Octans – Isaac has a chance to fire two extra tears at 20° angles.
• Pictor – Isaac leaves a trail of rainbow creep with random effects.
• Reticulum – Isaac gains a tiny damage up each time he hits an enemy in a room.
• Telescopium – Fire tears that travel an incredibly long distance.

Credits

Art
Electoon, Erfly, Xalum

Coding
Erfly, Kanae Shinjou, Tutor801

Special Thanks
DrkStracker, NyxNyxNyx, Spike Berd, The Modding of Isaac Discord Channel

Credit to the designs for the constellations goes to Denis Moskowitz.
Check his stuff out here! https://www.suberic.net/~dmm/astro/index.html