SiZium is a modded survival experience built for a private multiplayer server on Minecraft 1.21.1 (NeoForge). Designed with exploration and dungeon diving at its core, SiZium transforms the vanilla world into a rich and dangerous adventure to share with friends.

🌍 A World Worth Exploring Thanks to Terralith and Tectonic, the overworld is completely overhauled with stunning new biomes and dramatic terrain. Every journey feels different, with Xaero's Minimap & World Map to help you navigate the wilderness.

🏛️ Dungeons & Structures The world is packed with new dangers and rewards. Explore revamped structures courtesy of the full YUNG's suite — Better Strongholds, Desert Temples, Jungle Temples, and more. Discover ATi Structures, conquer The Twilight Forest, reach End Remastered's new End Islands, and face tougher enemies with Raids: Enhanced and Mowzie's Mobs.

🎒 Loot & Progression Loot chests are instanced per player with Lootr, so everyone gets their fair share. Collect powerful Artifacts, gear up with Sophisticated Backpacks, and customize your armor with Better Swords & Pickaxe Trims that grant real effects via TrimsEffects.

👥 Multiplayer-Ready Chat with your teammates using Simple Voice Chat, track your character with Corpse on death, and enjoy a smooth experience thanks to performance mods like Sodium, ImmediatelyFast, FerriteCore, and ModernFix.