Roadmap
Partially done

Done
Stage 1
Current stage (Alpha). This is what I'm working on now.
- Some refactoring, optimizations and fixes

- Animals

- Sound
- Combat

- Clothes, armor, armor stand

- Fire

- Item durability

- Fixing tools, weapons and armor

- Weather
- Coloring (with a brush)

- Distillery and squeezer

- Mobile item containers: crates, cardboard boxes, backpacks

- Fluid and gas recipes and containers

- Pipes, filtering, sorting

- Fish trap

- Logic circuits

- Sandbox building tools
- Other new items and blocks (everything before steam power)

- More console commands
Stage 2
Beta. Must-have features for the finished game.
- More refactoring, optimizations and fixes
- Rework inventory screen
- Steam integration
- Additional fluid/gas distribution blocks
- Signs, writing on an empty warning sign
- Books
- Rest of machines and other things (guns, jetpacks, explosives etc.)
- Rework caverns
- Procedurally generated structures
- Music
- Animal breeding, babies, spawn chickens from eggs
- Hostile mobs
- Linux launcher
- Some kind of quest/progression system
- Skin customization/selection
- Wiki
Stage 3
These are the would-be-nice-to-have features. Some may be implemented before 1.0.0, some - after, some - never.
- More refactoring for the god of refactoring
- Slopes and customizable blocks
- Player graves
- Flammable fluids
- More convenient dye mixing
- Alchemy, potions, enchantments etc.
- Dimensions
- Space travel
- Rework combat (weapon speed, knockback etc.)
- Paintings, maps
- Fishing rod, bow and arrows
- Horse, zebra and camel riding
- Large mini-map, waypoints, teleportation
- World customization, starting biome
- Poison, status effects
- Checklist
- Colored canvas stuff
- Stencil painting
- Lectern
- Server password, whitelist, blacklist
- Throw snowballs, dung, eggs etc.
- More console commands
- Server rules
- Iron man mode
- Better modding tools