Game mechanics & math

How a hit is resolved

Every swing, shot or spell resolves in two independent rolls. First an accuracy rolldecides hit or miss — your accuracy against the target's defence in the style you are attacking with. Then, on a hit, a damage roll picks a number between 0 and your max hit. Real misses (and zero-damage hits) are possible.

attack roll  = (skill + 8) × (accuracy bonus + 64)
defence roll = (skill + 8) × (defence bonus  + 64)
hit chance   = compare the two rolls
max hit      = floor( (4 + strength bonus) × (1 + strength/128) )
damage       = hit ? random 0..maxHit × weakness : 0

The attacking style— melee, ranged or magic — decides which skills and which equipment bonuses feed the rolls, and which of the target's three per-style defences resists.

Mietshu is server-authoritative. The server owns the real game state; your client sends intents(“move here”, “attack that”) and renders the results. Nothing you do is “true” until the server agrees — which is what keeps combat and trading fair.

The world advances in fixed ticks. Each map room simulates at 20 ticks per second — one tick every 50 ms. On each tick the server steps every system in order: creature AI, chasing and pathfinding, combat resolution, NPC schedules, weather and the world clock. State changes are then diffed and broadcast to every client in the room.

tick rate        = 20 Hz   → 1 tick every 50 ms
player attack    = one swing every 1500 ms (every 30 ticks)
creature attack  = per-creature interval (see each creature page)

Your attack lands on a fixed cadence— one swing per 1.5 seconds. Spam-clicking does nothing: extra “attack” messages are ignored until the cooldown elapses, and swapping targets carries the cooldown across, so there is no click-speed advantage to min-max. What you optimise is gear, levels and style — not APM.

Ping is the round trip for a message to reach the server and come back. It affects how quickly you see things — not how they resolve.

• Your movement is predicted locally.Your keeper steps the instant you press a key; the client then reconciles with the server's authoritative position. Walking feels instant regardless of ping.
• Combat is never predicted. Hit-or-miss and damage are rolled entirely on the server. A high ping means you seethe hitsplat a little later — it never changes the result, and it can't be abused.
• Other players and creatures are interpolated. You see them at their last broadcast position, smoothed between ticks, so a 50 ms tick still looks fluid.
• Dropping out is forgiven. A brief disconnect enters a reconnect-grace window — rejoin in time and your session, combat state and position are restored rather than reset.

Bottom line for min-maxers: because every roll is server-side and your attack cadence is fixed, ping is a comfort factor, not a powerfactor. A 200 ms player and a 20 ms player kill the same monster in the same number of swings.