Mod Info

Minecraft Sigma (MCS) is a base class edit mod for beta 1.7.3. The goal of this project is to improve old MC while preserving the survival sandbox experience.

Official Wiki

Additions include:

• Cauldron brewing for potions.
• Arcane magic and spell creation.
• Nether Expansion!
• Double world height using same world format!
• Alpha monoliths!
• New ore distribution.
• Ice boat drifting (Not too fast)
• Animal taming.
• Better lakes.
• Sponge in the oceans.
• Small tweaks and enhancements like better 2d items, colored lightmaps, recipes.
• Armor stands.
• Slime blocks for bouncing items and entities.
• Dynamite for rocket jumping.
• Mob AI upgrade.
• Backported ravines.
• Implemented my version of beacons (No GUI, just multiblock with mob spawn prevention, potentially more effects in futurte).
• Walking speed bonuses on certain materials to make road building practical.
• Hundreds of bug fixes and QoL

Recent features

• New music.
• doubled world height to 256 (compatible with old worlds)
• Expanded nether.
• Added arcane sorcery system.

Join Discord to discuss the mod or get test snapshots:

https://discord.gg/4GySNencr4

INSTALLATION

1. Download and install Java 8.
2. Download and install MultiMC or PrismLauncher.
3. Create a new b1.7.3 instance.
4. Download the latest MCS zip file from ⁠releases.
5. In Launcher, Select Edit > Version > Add to Minecraft jar > choose mcs-[version].zip
6. Play!

DO NOT install other mods alongside MCS as they are not compatible!

Survival Tips

• Hunt spiders to make a bed.
• Check achievements!
• Tame animals with different foods.
• Mix and match armor for defence bonuses.
• Store armor on stands.
• Control and right click to place down tools.
• Use inventory shortcuts like number keys, dragging, control click.
• Build roads for faster walking
• Make mob farms with barrels.
• Construct beacons for powerful effects.
• don't let your guard down at night

Notable Recipes

Spoiler

Recipe: Bed x1 Ingredients:

• Silk
• Cloth
• Planks

Recipe: Cauldron and Arcane Table Ingredients:

• Dormant rock

Potions: mix items and find out

Recipe: Saddle x1 Ingredients:

• Leather

Recipe: Bucket Empty x1 Ingredients:

• Ingot Gold

Recipe: Web x1 Ingredients:

• Silk

Recipe: Dynamite x4 Ingredients:

• Redstone x1
• Gunpowder x1
• Gunpowder x1
• Silk x1

Recipe: Tnt x1 Ingredients:

• Dynamite
• Paper

Recipe: Apple Gold x1 Ingredients:

• Ingot Gold
• Apple Red

Recipe: Compass x1 Ingredients:

• Ingot Iron
• Redstone

Recipe: Lapis Bricks x2 Ingredients:

• Lapis
• Clay

Recipe: Seared Bricks x4 Ingredients:

• Seared Stone

Recipe: Grout x2 Ingredients:

• Slow Sand
• Gravel
• Clay

Recipe: Brick x2 Ingredients:

• Brick
• Clay

Recipe: White Stone x1 Ingredients:

• Cobblestone
• Bonemeal

Recipe: Beacon x1 Ingredients:

• Glass
• Glow Stone
• Obsidian

Recipe: Stone Bricks x4 Ingredients:

• Stone

Recipe: Iron Grate x6 Ingredients:

• Ingot Iron

Recipe: Slime Block x1 Ingredients:

• Slime Ball

Recipe: Slime Ball x4 Ingredients:

• Slime Block

Recipe: Barrel x1 Ingredients:

• Planks

Recipe: Armor Stand x1 Ingredients:

• Fence
• Stair Single

Useful Java args

-XX:+UseConcMarkSweepGC -XX:-UseAdaptiveSizePolicy -Xss1024K

You should allocate 1 gigabyte of RAM, old minecraft does not need much.

WARNING

Not compatible with other mods! No multiplayer yet. This is a hobby project of mine, althought I try to add content and bugfixes regularly, there is no guaranteed plan.

Credits

Mojang - the game itself and assets; RetroMCP - the tool I used to decompile, reobfuscate and build this mod; Birevan - Light Color modification; FloweChild - Piston packing code, game design ideas such as material walk speed, gloom, textures for barrel and creeper oysters. Bestsoft100 - help with dynamic block mining delay; alexchompski - light sensor, observer, spells textures, snowball idea. Krzysztof Pikes - new music

This project modifies obfuscated class files from Minecraft Beta 1.7.3, which is © Mojang AB and not open source. The author claims no ownership over the original Minecraft code. This mod is provided for educational and archival purposes only. No part of this project may be used commercially. Redistribution of Minecraft code remains subject to Mojang’s end-user license agreement (EULA).