Terraria Advanced: Mining & Health

A compact, vanilla-JS mining/crafting/survival prototype — built as a technical demo and love letter to early Terraria / 2D sandbox classics.

~450 lines of pure JavaScript + Canvas. No frameworks, no assets, no build step.

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What you can do right now

• Procedural 200×100 overworld with terrain, caves, trees and ore veins (coal → iron → gold)
• Three-tier pickaxe progression (wood → stone → iron) with visibly different mining speeds
• Basic crafting menu (press E) — planks, tools, sword, stone bricks
• 5-heart health + fall damage + knockback + simple death/respawn screen
• Aggressive green slimes that chase and leap toward you
• Hotbar (1–9 keys), item stacking, right-click place, left-click mine/attack
• Mining progress overlay, block-breaking particles, underground lighting shift

Controls

WASD move
SPACE jump
LEFT CLICK mine / attack
RIGHT CLICK place block
1–9 hotbar select
E toggle crafting menu
Q (optional future) drop item

Quick start guide

1. Punch trees → logs → craft wood planks → craft wood pickaxe
2. Dig → stone → craft stone pickaxe (much faster)
3. Go deeper → iron/gold ore → craft iron pickaxe
4. Avoid / fight slimes — they hit hard early game
5. Don't fall too far (fall damage is punishing)

Known limitations (2026 demo state)

• No torches, lighting is just sky/underground color shift
• Ores used directly in crafting (no smelting / bars yet)
• Only one enemy type, no bosses or deeper progression
• No sound, no save system, no mobile controls
• Very basic collision & AI (but surprisingly playable)

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Dig fast. Die faster. Improve the code.
Made as a raw JavaScript / canvas hacking experiment.

Pure code — emoji hearts — hand-picked colors — zero dependencies

Tags people usually add: terraria, mining, sandbox, survival, procedural, pixel, javascript, html5, vanilla-js, retro