Core Gameplay Loop

Canonical GDD content

The loop at three timescales

Moment-to-moment (seconds)

Move → assess threats (zombies, players) → fight or flee → manage stamina/ammo → loot → manage survival stats. In Phase 2, repeated activities also feed the relevant learn-by-doing skill.

Session loop (minutes to hours)

1. Spawn / return to base or a safe point.
2. Plan based on needs: food, water, materials, gear, blueprints.
3. Scavenge / hunt — explore POIs, kill zombies, gather resources, fight or avoid players.
4. Engage threats — zombie encounters, optional boss hunts, PvP.
5. Return & invest — store loot, craft, repair, upgrade and fortify the base.
6. Log off — base persists and is vulnerable. (See ../04-Multiplayer/04-PvP-Raiding-and-Trading.md.)

Meta loop (days to weeks)

Tech-tree unlocks → higher-tier gear → tougher regions and bosses → boss components → top-tier weapons → permanent buffs → Phase 2 skill mastery → territory dominance. Setbacks (death, being raided) feed back into the scavenge loop.

        ┌─────────────────────────────────────────────┐
        │                                             │
   ┌────▼────┐   ┌──────────┐   ┌──────────┐   ┌──────┴──────┐
   │ Survive │──▶│ Scavenge │──▶│  Fight   │──▶│ Build/Craft │
   │ (stats) │   │ (loot)   │   │ (PvE/PvP)│   │ (invest)    │
   └────▲────┘   └──────────┘   └────┬─────┘   └──────┬──────┘
        │                            │                │
        │         ┌──────────────────▼────────┐       │
        └─────────┤  Boss hunts → components,  ◀───────┘
                  │  weapons, permanent buffs  │
                  └────────────────────────────┘

What makes the loop compelling

• Stakes: full-loot death and raidable bases mean every excursion is a real bet.
• Pull factors: crafting unlocks and boss rewards constantly dangle the next upgrade.
• Long-tail mastery: Phase 2 learn-by-doing skills reward repeated play in the activities players already care about, without adding a global character level.
• Push factors: survival stats decay and zombie pressure prevent turtling forever.
• Social variance: other players inject unscripted drama into an otherwise systemic loop.

Failure & recovery

• Death = drop all carried loot at the death location (hardcore). Player respawns at a bed/sleeping bag or a fresh spawn, with nothing.
• Recovery hook: because death is harsh, the early scavenge loop must be fast and forgiving enough to re-arm quickly. The first 5 minutes after death should give a clear path back to viability.
• Base loss: a fully raided base is a major setback but not account-ending — territory and a fresh start remain possible.

See related: 04-Survival-System.md, 07-Crafting-and-Progression.md, ../03-Enemies/02-Boss-Zombies.md.