Combat Zones
Each zone contains three mob tiers and a boss encounter. Defeat the boss to unlock the next zone.
Combat Mechanics
Battles are tick-based (0.5s ticks) with dynamic damage variance. Each tick, both sides deal damage simultaneously.
| Mechanic | Formula | Notes |
|---|---|---|
| Player DPS | max(ATK × 15%, ATK − Enemy DEF) | You always deal at least 15% of your ATK, even against high DEF |
| Enemy DPS | max(ATK × 15%, ATK − Player DEF − Player Regen) | Your DEF and HP Regen both reduce incoming damage |
| Damage Variance | ±20% (player) / ±20-35% (bosses) | Each tick rolls random damage within the spread range |
| Base Stats | 5 ATK, 100 HP, 0 DEF, 0 Regen | Your starting stats before any gear or warrior bonuses |
| Victory | Enemy HP reaches 0 before yours | Boss fights have a 10 min timeout (= loss) |
Warrior Level Bonuses
Killing bosses grants Warrior XP, which levels up your Warrior skill. Higher Warrior levels give permanent combat bonuses:
| Warrior Level | ATK Bonus | HP Bonus | Regen Bonus | DEF Bonus |
|---|---|---|---|---|
| 5 | +1 ATK | — | — | — |
| 15 | — | +5 HP | — | — |
| 20 | +1 ATK (total +2) | — | — | — |
| 30 | — | — | +1 Regen | — |
| 40 | +2 ATK (total +4) | — | — | — |
| 50 | — | — | — | +2 DEF |
| 60 | — | +10 HP (total +15) | — | — |
| 75 | +3 ATK (total +7) | — | +2 Regen (total +3) | — |
| 80 | — | — | — | +3 DEF (total +5) |
Zone Unlock Requirements
Each zone has multiple unlock conditions. You must meet all of them to enter.
| Zone | Previous Zone | Warrior Level | Gate Items (must own) | Entry Cost (consumed per run) |
|---|---|---|---|---|
| 1 — Slime Cavern | — | — | — | Wheat ×3 |
| 2 — Goblin Outpost | Zone 1 | Lvl 3 | — | Herbs ×3 |
| 3 — Wild Forest | Zone 2 | Lvl 8 | Slime Shield | Slime Gel ×2 + Apples ×1 |
| 4 — Orc Stronghold | Zone 3 | Lvl 15 | Goblin Blade | Goblin Tooth ×3 + Blossoms ×2 |
| 5 — Troll Bridge | Zone 4 | Lvl 25 | Wolf Fang Pendant + Orc Plate | Wolf Fang ×2 + Orc Shard ×2 + Clovers ×2 |
| 6 — Dragon Lair | Zone 5 | Lvl 40 | Troll Cloak | Troll Hide ×2 + Orchids ×2 |
| 7 — Shadow Crypt | Zone 6 | Lvl 55 | Lich Ring | Dragon Scale ×2 + Dragon Heart ×1 |
| 8 — Celestial Spire | Zone 7 | Lvl 75 | Lich Sword + Lich Helm | Lich Crystal ×2 + Troll Heart ×1 |
Gate Items must be in your inventory or equipped — they are NOT consumed. Entry Cost items are consumed every time you enter the dungeon.
Boss Chest Drop Mechanics
Boss chest drops are not guaranteed. When you defeat a boss, the following roll determines your chest reward:
| Roll | Chance | Result |
|---|---|---|
| Listed chest tier | 55% | You receive the chest shown in the boss reward (e.g. Rare Bag) |
| One tier lower | 30% | You receive a chest one rarity below (e.g. Rare → Common). Common stays Common. |
| No chest | 15% | No chest at all — you only keep gold and materials earned from mob kills |
Even when a chest drops, equipment is not guaranteed. Each chest tier has a separate equipment chance:
| Chest | Equipment Chance | Gold Range | On Fail |
|---|---|---|---|
| Common Bag | 50% | 15–30g | Gold + 1 bonus material roll |
| Rare Bag | 60% | 30–75g | Gold + 2 bonus material rolls |
| Epic Bag | 70% | 75–150g | Gold + 2 bonus material rolls |
| Legendary Bag | 80% | 150–300g | Gold + 3 bonus material rolls |
Boss Stat Requirements
Each boss (except Slime King) requires minimum combat stats to challenge. These stats come from your gear + warrior level bonuses + permanent potions.
| Boss | Min ATK | Min HP | Min Regen | Min DEF | Recommended Gear Set |
|---|---|---|---|---|---|
| Slime King | — | — | — | — | None / starter gear |
| Goblin Chief | 10 | — | — | — | Wooden Set (6 ATK, 15 HP, 1 Regen) |
| Forest Wolf | 12 | 130 | — | — | Copper Set (13 ATK, 55 HP, 2 Regen) |
| Orc Warlord | 25 | 180 | 4 | — | Shadow Set (29 ATK, 105 HP, 5 Regen) |
| Troll Overlord | 40 | 230 | 7 | — | Golden Set (44 ATK, 150 HP, 7 Regen) |
| Ancient Dragon | 55 | 300 | 10 | — | Void Set (62 ATK, 230 HP, 10 Regen) |
| Necromancer Lord | 75 | 380 | 13 | 8 | Void Set + warrior bonuses + potions |
| Storm Titan | 100 | 500 | 18 | 15 | Full endgame build required |
Recommended set shows full-set totals (gear bonus only, without base stats 5 ATK / 100 HP). Your actual stats = base + gear + warrior bonuses + potions.
Zone 1 — Slime Cavern
No level requirementsEntry cost: Wheat ×3 (consumed per run)
🫧 Slime Scout80 HP1.5 ATK1 XP10-22g30% Slime Gel
🫧 Slime Guard150 HP2 ATK2 XP15-30g40% Slime Gel
🫧 Slime Brute250 HP3 ATK3 XP22-40g50% Slime Gel
💧 Slime King350 HP3 ATKNo stat req12 Warrior XP
Zone 2 — Goblin Outpost
Clear Zone 1 · Warrior Lvl.3Entry cost: Herbs ×3 (consumed per run)
👺 Goblin Scout220 HP2.5 ATK3 XP10-20g30% Goblin Tooth
👺 Goblin Warrior350 HP3.5 ATK5 XP15-30g40% Goblin Tooth
👺 Goblin Shaman480 HP4 ATK8 XP20-40g50% Goblin Tooth
👺 Goblin Chief600 HP4.5 ATKReq: 10 ATK40 Warrior XP
Zone 3 — Wild Forest
Clear Zone 2 · Warrior Lvl.8 · Own Slime Shield🐺 Young Wolf320 HP3.5 ATK1 DEF10 XP20-40g30% Wolf Fang
🐺 Pack Wolf450 HP4.5 ATK2 DEF16 XP30-55g40% Wolf Fang
🐺 Alpha Wolf580 HP5 ATK2 DEF25 XP45-80g50% Wolf Fang
🐺 Forest Wolf650 HP5 ATK2 DEFReq: 12 ATK · 130 HP100 Warrior XP
Zone 4 — Orc Stronghold
Clear Zone 3 · Warrior Lvl.15 · Own Goblin Blade👹 Orc Grunt800 HP6 ATK3 DEF28 XP60-120g30% Orc Shard ×2
👹 Orc Brute1,200 HP7 ATK4 DEF48 XP90-160g40% Orc Shard ×2
👹 Orc Shaman1,600 HP8 ATK5 DEF70 XP120-200g50% Orc Shard ×3
👹 Orc Warlord1,800 HP8.5 ATK6 DEFReq: 25 ATK · 180 HP · 4 Regen300 Warrior XP
Zone 5 — Troll Bridge
Clear Zone 4 · Warrior Lvl.25 · Own Wolf Fang Pendant + Orc Plate🧌 Bridge Troll1,400 HP8 ATK4 DEF110 XP150-250g30% Troll Hide ×2
🧌 Stone Troll2,000 HP9 ATK5 DEF180 XP200-350g40% Troll Hide ×3
🧌 Ancient Troll2,700 HP10 ATK6 DEF260 XP280-450g50% Troll Hide ×3
🧌 Troll Overlord2,900 HP10.5 ATK (±25%)7 DEFReq: 40 ATK · 230 HP · 7 Regen1,100 Warrior XP
Zone 6 — Dragon Lair
Clear Zone 5 · Warrior Lvl.40 · Own Troll Cloak🐉 Dragon Whelp2,000 HP12 ATK (±30%)6 DEF450 XP200-350g30% Dragon Scale ×2
🐉 Dragon Guard2,800 HP13 ATK (±30%)7 DEF750 XP280-450g40% Dragon Scale ×3
🐉 Elder Dragon3,800 HP14.5 ATK (±30%)9 DEF1,100 XP350-500g50% Dragon Scale ×4
🐉 Ancient Dragon4,200 HP15 ATK (±35%)10 DEFReq: 55 ATK · 300 HP · 10 Regen4,500 Warrior XP
Zone 7 — Shadow Crypt
Clear Zone 6 · Warrior Lvl.55 · Own: Lich Ring💀 Skeleton Archer2,800 HP16 ATK (±30%)8 DEF1,400 XP280-420g30% Shadow Dust ×2
💀 Zombie Knight4,000 HP17 ATK (±30%)10 DEF2,200 XP380-580g40% Shadow Dust ×3
💀 Lich Apprentice5,200 HP18.5 ATK (±35%)11 DEF3,200 XP480-700g50% Shadow Dust ×4
💀 Necromancer Lord6,500 HP20 ATK (±40%)13 DEFReq: 75 ATK · 380 HP · 13 Regen · 8 DEF12,000 Warrior XP
Zone 8 — Celestial Spire
Clear Zone 7 · Warrior Lvl.75 · Own: Lich Sword + Lich HelmGate: Lich Sword + Lich Helm (must own) · Entry cost: Lich Crystal ×2 + Troll Heart ×1 (consumed per run)
🐍 Sky Serpent4,500 HP21 ATK (±30%)11 DEF3,500 XP450-650g30% Storm Shard ×2
🦅 Thunder Drake6,200 HP23 ATK (±35%)13 DEF5,500 XP600-900g40% Storm Shard ×3
🌪️ Storm Elemental8,000 HP25 ATK (±40%)15 DEF8,000 XP750-1,100g50% Storm Shard ×4
⚡ Storm Titan10,000 HP28 ATK (±45%)18 DEFReq: 100 ATK · 500 HP · 18 Regen · 15 DEF25,000 Warrior XP
Zone 1 — Slime Cavern
No level requirementsEntry cost: Wheat ×3 (consumed per run)
🫧 Slime Scout80 HP1.5 ATK1 XP10-22g30% Slime Gel
🫧 Slime Guard150 HP2 ATK2 XP15-30g40% Slime Gel
🫧 Slime Brute250 HP3 ATK3 XP22-40g50% Slime Gel
💧 Slime King350 HP3 ATKNo stat req12 Warrior XP
Zone 1 Strategy
- Entry-level zone — no gear or warrior level required, but costs 3 Wheat per run (farm Wheat Seeds on your farm)
- Farm Slime Gel from mobs (30-50% drop chance) and boss (3 guaranteed) to craft Slime Shield
- Slime Shield is a gate item required to enter Zone 3 (Wild Forest) — you must own it but it is not consumed
- Equip the Wooden Set from Common Bags to reach 11 ATK / 115 HP / 1 Regen
Zone 2 — Goblin Outpost
Clear Zone 1 · Warrior Lvl.3Entry cost: Herbs ×3 (consumed per run)
👺 Goblin Scout220 HP2.5 ATK3 XP10-20g30% Goblin Tooth
👺 Goblin Warrior350 HP3.5 ATK5 XP15-30g40% Goblin Tooth
👺 Goblin Shaman480 HP4 ATK8 XP20-40g50% Goblin Tooth
👺 Goblin Chief600 HP4.5 ATKReq: 10 ATK40 Warrior XP
Zone 2 Strategy
- Costs 3 Herbs per run — grow Herb Seeds on your farm (8 min grow time)
- Boss requires 10 ATK minimum — equip at least a Wooden Sword (+3) and Wooden Helm (+2) to reach it
- Farm Goblin Tooth to craft Goblin Blade — gate item for Zone 4
- Rare Bags can drop Copper Set pieces (target: 18 ATK, 155 HP, 2 Regen)
Zone 3 — Wild Forest
Clear Zone 2 · Warrior Lvl.8 · Own Slime Shield🐺 Young Wolf320 HP3.5 ATK1 DEF10 XP20-40g30% Wolf Fang
🐺 Pack Wolf450 HP4.5 ATK2 DEF16 XP30-55g40% Wolf Fang
🐺 Alpha Wolf580 HP5 ATK2 DEF25 XP45-80g50% Wolf Fang
🐺 Forest Wolf650 HP5 ATK2 DEFReq: 12 ATK · 130 HP100 Warrior XP
Zone 3 Strategy
- First zone with DEF stat on enemies — your ATK is reduced by their DEF (min 15% damage floor)
- Costs 2 Slime Gel + 1 Apple per run — grow Apple Seeds (20 min) and stockpile Slime Gel from Zone 1
- Boss requires 12 ATK + 130 HP — full Copper Set gives 18 ATK / 155 HP / 2 Regen
- Farm Wolf Fang to craft Wolf Fang Pendant — gate item for Zone 5
- Epic Bags can drop Shadow Set pieces (target: 34 ATK, 205 HP, 5 Regen)
Zone 4 — Orc Stronghold
Clear Zone 3 · Warrior Lvl.15 · Own Goblin Blade👹 Orc Grunt800 HP6 ATK3 DEF28 XP60-120g30% Orc Shard ×2
👹 Orc Brute1,200 HP7 ATK4 DEF48 XP90-160g40% Orc Shard ×2
👹 Orc Shaman1,600 HP8 ATK5 DEF70 XP120-200g50% Orc Shard ×3
👹 Orc Warlord1,800 HP8.5 ATK6 DEFReq: 25 ATK · 180 HP · 4 Regen300 Warrior XP
Zone 4 Strategy
- Costs 3 Goblin Tooth + 2 Blossoms per run — grow Blossom Seeds (25 min) and farm Goblin Tooth from Zone 2
- Boss requires 25 ATK, 180 HP, 4 Regen — you need at least the Shadow Set (29 ATK, 205 HP, 5 Regen with base stats)
- Mobs have 3-5 DEF and boss has 6 DEF — high ATK is important to overcome damage reduction
- Farm Orc Shard (drops in quantities of 2-3) to craft Orc Plate — gate item for Zone 5
- Boss drops exclusive Warlord Sigil (used in advanced crafting recipes)
Zone 5 — Troll Bridge
Clear Zone 4 · Warrior Lvl.25 · Own Wolf Fang Pendant + Orc Plate🧌 Bridge Troll1,400 HP8 ATK4 DEF110 XP150-250g30% Troll Hide ×2
🧌 Stone Troll2,000 HP9 ATK5 DEF180 XP200-350g40% Troll Hide ×3
🧌 Ancient Troll2,700 HP10 ATK6 DEF260 XP280-450g50% Troll Hide ×3
🧌 Troll Overlord2,900 HP10.5 ATK (±25%)7 DEFReq: 40 ATK · 230 HP · 7 Regen1,100 Warrior XP
Zone 5 Strategy
- Requires two gate items: Wolf Fang Pendant (crafted from Wolf Fangs) + Orc Plate (crafted from Orc Shards)
- Costs 2 Wolf Fang + 2 Orc Shard + 2 Clovers per run — expensive entry, plan your runs
- Boss requires 40 ATK, 230 HP, 7 Regen — target the Golden Set (49 ATK, 250 HP, 7 Regen with base stats)
- Troll Overlord has ±25% damage variance and 8 DEF — bring food for healing during the fight
- Farm Troll Hide to craft Troll Cloak — gate item for Zone 6
- Boss drops exclusive Troll Heart (used in advanced crafting recipes)
Zone 6 — Dragon Lair
Clear Zone 5 · Warrior Lvl.40 · Own Troll Cloak🐉 Dragon Whelp2,000 HP12 ATK (±30%)6 DEF450 XP200-350g30% Dragon Scale ×2
🐉 Dragon Guard2,800 HP13 ATK (±30%)7 DEF750 XP280-450g40% Dragon Scale ×3
🐉 Elder Dragon3,800 HP14.5 ATK (±30%)9 DEF1,100 XP350-500g50% Dragon Scale ×4
🐉 Ancient Dragon4,200 HP15 ATK (±35%)10 DEFReq: 55 ATK · 300 HP · 10 Regen4,500 Warrior XP
Zone 6 Strategy
- Hardest zone — all enemies have high DEF (6-12) and ±30-35% damage variance
- Costs 2 Troll Hide + 2 Orchids per run — grow Orchid Seeds (90 min each) and farm Troll Hide from Zone 5
- Boss requires 55 ATK, 300 HP, 10 Regen — you need the full Void Set (67 ATK, 330 HP, 10 Regen with base stats) plus warrior bonuses
- Ancient Dragon has 10 DEF and ±35% damage spread — food loadout with healing is essential
- Boss drops exclusive Dragon Heart — required to enter Zone 7
- Legendary Bags can drop Void Set pieces and permanent stat potions (ATK/HP/Regen/DEF)
Zone 7 — Shadow Crypt
Clear Zone 6 · Warrior Lvl.55 · Own: Lich Ring💀 Skeleton Archer2,800 HP16 ATK (±30%)8 DEF1,400 XP280-420g30% Shadow Dust ×2
💀 Zombie Knight4,000 HP17 ATK (±30%)10 DEF2,200 XP380-580g40% Shadow Dust ×3
💀 Lich Apprentice5,200 HP18.5 ATK (±35%)11 DEF3,200 XP480-700g50% Shadow Dust ×4
💀 Necromancer Lord6,500 HP20 ATK (±40%)13 DEFReq: 75 ATK · 380 HP · 13 Regen · 8 DEF12,000 Warrior XP
Zone 7 Strategy
- First post-endgame zone — requires Warrior Lvl.55 and costs 2 Dragon Scale + 1 Dragon Heart per run
- Entry cost is expensive — stockpile Dragon materials from Zone 6 before attempting
- Boss requires 75 ATK, 380 HP, 13 Regen, 8 DEF — Void Set plus significant warrior bonuses and potions needed
- Necromancer Lord has ±40% damage variance — highest variance yet, bring a full food loadout
- Farm Shadow Dust from mobs (30-50% drop) for future crafting
- Boss drops exclusive Lich Crystal — required for Zone 8 entry
Zone 8 — Celestial Spire
Clear Zone 7 · Warrior Lvl.75 · Own: Lich Sword + Lich HelmGate: Lich Sword + Lich Helm (must own) · Entry cost: Lich Crystal ×2 + Troll Heart ×1 (consumed per run)
🐍 Sky Serpent4,500 HP21 ATK (±30%)11 DEF3,500 XP450-650g30% Storm Shard ×2
🦅 Thunder Drake6,200 HP23 ATK (±35%)13 DEF5,500 XP600-900g40% Storm Shard ×3
🌪️ Storm Elemental8,000 HP25 ATK (±40%)15 DEF8,000 XP750-1,100g50% Storm Shard ×4
⚡ Storm Titan10,000 HP28 ATK (±45%)18 DEFReq: 100 ATK · 500 HP · 18 Regen · 15 DEF25,000 Warrior XP
Zone 8 Strategy
- The ultimate endgame zone — requires Warrior Lvl.75 and extremely costly entry: 2 Lich Crystal + 1 Troll Heart
- All enemies deal 21-25 ATK with high DEF (11-15) — you need maximum ATK to overcome damage reduction
- Storm Titan requires 100 ATK, 500 HP, 18 Regen, 15 DEF — absolute maximum gear, warrior bonuses, and potions required
- Titan has ±45% damage variance and 18 DEF — the most demanding fight in the game
- Farm Storm Shard from mobs (30-50% drop) for future crafting
- Boss drops exclusive Titan Core (mythic rarity) — the rarest material in Grindly
Food Buff Stacking Caps
Food and plant buffs consumed during battle are subject to stacking caps. Even if you load many food items, the total active buff from food cannot exceed these limits:
| Stat | Max Food Buff |
|---|---|
| ATK | +25 |
| DEF | +15 |
| HP Regen | +8 |
These caps only apply to food/plant buff bonuses. Gear, warrior level, and permanent potion stats are not affected.
Permanent Stat Potions
Permanent stat potions (ATK, HP, Regen, DEF) each have a cap of 20 per stat. Once you reach the cap, any additional potions are auto-converted into 100 gold instead of being wasted.
Hot Zone
Every week, one zone is designated the Hot Zone. The Hot Zone rotates deterministically — every player sees the same Hot Zone at the same time. It resets every Monday at midnight UTC.
🪙
2× Gold
All mob kills drop double gold
💎
2× Drops
Material drop rates doubled
📦
+1 Chest Tier
Common→Rare, Rare→Epic, Epic→Legendary
Hot Zone Rotation
The rotation is seeded by ISO week number + year, so every player gets the same Hot Zone for the full week. The zone indicator is shown on the arena zone card. Check back each Monday for the new Hot Zone.