THUMBYROGUE

Controls

Loot & Inventory (Diablo-4-lite)

The hero has no fixed class — the equipped weapon defines your playstyle (melee / ranged / caster), and a full 6-slot paperdoll of gear shapes the rest of your build. Loot vacuums into a 21-slot backpack; open MENU to compare, equip, salvage and socket. The paperdoll cells show each equipped item's icon, your live stats sit beside them, and the fog-of-war map tucks into the top-right.

Equipment slots

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Slot	Bases	Role
Weapon	12 types — Dagger, Sword, Greatsword, Axe, Mace, Spear, Warhammer (melee) · Bow, Crossbow (ranged) · Wand, Scepter, Staff (caster)	Sets attack style; base damage spans 14 → 52, with faster weapons hitting lighter
Off-hand	Shield, Tome, Charm	Armor / caster bonus
Helm	Cap, Helm, Crown	Armor + affixes
Armor	Tunic, Mail, Plate	Bulk of your armor
Amulet	Amulet, Pendant	Powerful jewel affixes
Ring	Ring, Band	Jewel affixes

Item icons

Every weapon type and item kind has its own glyph, drawn pixel-for-pixel by the game (rogue_item_draw_icon in rogue_inventory.c) and tinted by rarity so a legendary still reads at a glance. The same icons appear in the backpack grid and beside each merchant listing. These are the exact in-game icons:

Weapons — melee

Weapons — ranged & caster

Gear, gems & consumables

Attack effects

Each weapon type also has its own swing animation, impact sparks and projectile, so combat reads differently the moment you pick something up — not just different numbers.

Weapon	Effect
Dagger	quick short forward stab + a few pale sparks
Sword	clean wide cyan crescent, gold-white sparks
Greatsword	huge sweeping blue arc + a big blue spark burst
Axe	wide fiery orange cleave + ember sparks
Mace	short blunt arc + a grey dust shock-ring
Spear	long thin thrust with extra reach
Warhammer	stubby heavy arc + a large dust shock-ring
Bow	thin gold-wood arrow streak
Crossbow	heavy steel bolt, longer & faster
Wand	small fast cyan spark with a glittery trail
Scepter	golden holy mote with a sparkle trail
Staff	big purple arcane orb, glowing trail, larger impact

Magic detonates. Every wand / scepter / staff impact — wall, scenery or creature — fires a circular shockwave around a hot core burst and deals half-damage splash to everything within ~1.5 cells (staff blasts biggest). Piercing staves detonate on every enemy they punch through.

Rarity

Rarity is deliberately stingy early so the descent feels like progression — at depth 1 a drop is only ~0.5% legendary / ~2.9% rare (mostly common & magic); by depth 20 that climbs to ~6% / ~18%. Affix magnitudes scale with both depth and rarity too.

Affixes

All equipped affixes aggregate into your character: max life, armor (a diminishing-returns damage-reduction curve), crit (base 5% / 150%), attack & move speed, life-on-hit and resist.

Elements

An elemental affix (or an elemental gem socketed into your weapon) gives the weapon an element — a gameplay effect on every hit, and a full colour identity: projectile body, trail, impact bursts, the magic shockwave and melee sparks all take the element's palette.

Element	Effect on hit
Fire	bonus burn damage
Frost	chills the victim — 45% movement for 1.4s, icy motes shimmer off them
Poison	damage over time — venom ticks every half-second for 3s, green bubbles
Lightning	the bolt arcs to the nearest other enemy for full element power — a jagged spark line joins the victims
Holy	smites the unholy — double power vs skeletons, zombies, archers & demons, with a golden flare
Shadow	drains life — a slice of element power returns to you as healing
Void	implodes — drags the victim toward the impact instead of knocking it away
Arcane Force	a massive 1.2-cell launch — shove enemies off bridges, into chasms, into the lava

Legendary Aspects

The build-defining powers — gameplay modifiers, not just numbers:

Aspect	Effect
Chaining	Melee hits add a cleave AoE around the hero
Piercing	Projectiles pass through enemies, re-hitting as they fly
Nightstalker	+40% damage while your torch is out (in darkness)
Vampiric	Heal a fraction of your melee damage on hit
Thorns	Reflect a chunk of damage back at melee attackers

Item detail page

Press B on any item (equipped or in the bag) to open its detail page — the full damage/armor, every affix, the legendary aspect, and its sockets. All item management lives here:

• Equip / Unequip — or use the fast path: A on the grid equips/uses instantly
• Socket a gem — opens a gem picker; choose a bag gem to drop into a free socket
• Salvage — breaks the item down for gold, behind a yes/no confirmation so you never lose gear by accident

Sockets & Gems

Rare and legendary gear roll sockets. Gems drop into your backpack; open an item's detail page (B) and choose Socket a gem to slot one into a free hole.

The classic four grant their stats in any socket. The elemental eight imbue a weapon with their element when socketed there; in armor sockets they grant +4% elemental warding (resist) instead.

Economy — salvage & the merchant

Salvage unwanted gear into gold from its detail page (B → Salvage → confirm). Each floor has a real merchant's stall — a gold-trimmed counter, the shopkeeper behind it on his gold-tiled alcove, and a wares-packed shelf wall at his back. Walk up to the counter to trade:

• Buy — four rolled items at prices scaled by rarity & depth
• Gamble — pay gold for a random item
• Reroll — re-roll your equipped weapon's affixes
• Upgrade — raise your equipped weapon's base damage (once per shop)

Provoke him at your peril Hit the shopkeeper — even by accident — and he turns into a blink-casting battle wizard: huge HP, fans of three arcane bolts, and a teleport whenever you corner him. Kill him and his unsold stock spills onto the floor as free pickups… but the guild remembers: every shopkeeper for the rest of the run attacks on sight, and trading is over. The grudge only dies with you.

Level Generation

Every floor is carved fresh into a static 64×64×64 voxel space and rendered through a DDA raycaster at a fixed isometric tilt. The layout is a BSP partition — each split carves a corridor between its two halves, so the room graph is always fully connected and the down-stairs is always reachable. Every permadeath floor is solvable.

Depth bands

The theme shifts every 4 floors — reskinning blocks, swapping the enemy roster, and ending on a champion mini-boss. Each band has a distinct identity and includes a ranged threat (archer or fire sprite) plus, where it fits, a flyer (bat); together the five bands use all 11 enemy types. After the last band the sequence loops while enemy stats keep climbing: an endless descent. Each band reskins the floor, walls, pillars and the surrounding terrain:

Band	Floor / Wall	Theme	Roster
The Crypt	Wood plank / Cobble	Vermin & risen dead	Rat · Bat · Skeleton · Skeleton Archer
The Caverns	Dirt / Cave rock	Cave beasts & raiders	Spider · Kobold · Goblin · Bat · Slime
Fungal Deep	Mycelium / Fungal wall	Toxic spore horrors	Slime · Zombie · Fire Sprite · Spider · Kobold
Frostvault	Flagstone / Ice	Frozen undead	Skeleton · Skeleton Archer · Zombie · Bat
The Inferno	Obsidian / Cobble	Hell's legions	Demon · Fire Sprite · Goblin · Skeleton Archer · Kobold

What's in a floor

Enemies

Cuboid creatures with wander → chase → telegraphed wind-up → strike AI (every hit is fair — foes flash white-hot before they swing). Both stats and numbers scale with depth — the floor spawns 5 + depth enemies (up to 20) — and each type drops a different kind of loot, not just gold. Ranged foes fire projectiles and kite; flyers ignore the floor.

Foe	Behaviour	Drops
Rat	Fast, weak swarmer	gold
Slime	Slow tanky hopper	potion
Skeleton	Sturdy melee	gear
Spider	Fast melee	gold
Bat	Flyer, very fast, fragile	gold
Kobold	Quick skirmisher	gear
Goblin	Sturdy bruiser	gear
Zombie	Very slow, very tanky	potion
Skeleton Archer	Ranged — fires arrows & kites	gear
Fire Sprite	Ranged flyer — lobs fire	gem
Demon	Big, hard-hitting elite	rare gear
Shopkeeper	Peaceful trader — until hit. Then: blink-casting battle wizard	his stock!

Enemies respect the terrain too: anything knocked into lava burns down fast (fire sprites and demons shrug it off; flyers stay above it) — force-element weapons turn chasm rooms into kill zones.

Champion — 3× HP, 1.7× size, boss floors Rosters vary per depth band, so deeper floors mix in the deadlier foes.

Tension systems