Release Period: December 23, 2009 – February 6, 2010
Price: Originally €5.00; free if accessed via launcher
Indev 0.31 represents a series of 34 versions released during the development phase of Minecraft’s Indev period. All shared the in-game version number 0.31. These updates reintroduced Survival mode and expanded the game with crafting, new blocks, items, and enhanced world generation options, including diverse level types and themes.
Additions
General
- Title screen enhancements
- Dynamic lighting system
- Survival mode reinstated
- Crafting introduced
- Smelting possible by throwing items into fire or lava
- Difficulty options: Peaceful, Easy, Normal, Hard
Options
- Isometric level rendering screenshot option
- Fullscreen toggle via F11
- Ability to drop entire item stacks
- Right-click deposits single items from hovering stacks
- Mining stone requires pickaxes
Particles & Effects
- Particles appear when harvesting blocks
- Fire and lava emit particles
- Torches produce visible particle effects
Sounds
- New sound engine implemented
Blocks
- Fire
- Torch
- Chest
- Gear
- Diamond Ore (previously “Emerald Ore”)
- Block of Diamond (previously “Emerald Block”)
- Crafting Table (previously “Workbench”)
- Infinite water drains from the highest point
Items
- Apple
- Flint and Steel (places fire)
- Diamond (previously “Emerald”)
- Iron Ingot, Gold Ingot
- Tools: Shovels, Pickaxes, Axes, Swords (Iron, Diamond, Gold, and Wood variants)
- Armor: Cloth, Studded, Chainmail, Iron
- Miscellaneous: Stick, Bowl, Sulphur (Gunpowder), Feather, String, Mushroom Stew, Bow, Quiver (unused)
Mobs
- Giant
- NPCs like Rana, Beast Boy, Steve, and Black Steve (later removed)
Non-Mob Entities
- Functionless items can be dropped and picked up
World Generation
- Level Options: Island, Floating, Flat, Inland
- Level Shapes: Square, Long, Deep
- Level Sizes: Small, Normal, Huge
- Level Themes: Normal, Hell
- Liquid Spawners: Fluids can spawn above sea level and on floating islands
- Starting Houses
Changes
General
- Explosions weaken when passing through tougher blocks
Blocks
- Leaves cast shadows
- Grass can grow in dimly lit areas
- Lava ignites flammable materials
- Water physics updated:
- Stays on surface
- Doesn’t spread over unfilled areas
- Evaporation occurs (2/3 chance) or copies (1/3 chance)
Mobs
- Avoid environmental damage (cliffs, fire)
- Passive mobs spawn only in bright areas
- Hostile mobs spawn only in dark areas
Non-Mob Entities
- All items and mobs are flammable
World Generation
- Oceans now contain infinite water