Resources, Speed-ups & Stamina
How to farm Food, Iron and Gold, protect what you have, use speed-ups at the right moment, and never waste stamina.
The resources
- Food, Iron and Gold (Coin) are the core resources. Gold becomes the late-game bottleneck.
- Oil unlocks with Age of Oil (after Season 2) and is required for HQ 31–35.
- Each season adds its own resources (see the Seasons guides).
- Diamonds can't be stolen. Food, Iron and Gold can be partly looted when you lose a fight.
Farming
- Keep resource buildings around level 25 while pushing to HQ 30, and put good survivors in them.
- Gather before you log off. Send squads to the highest-level tiles you can safely reach. Higher-tier troops carry more. Keep at least one squad on gold.
- Cities your alliance holds give everyone bonus output.
- Other income: trade trucks, Doom Elite rallies and alliance gifts.
Protecting what you have
- Keep resources in your bag, not your base. Leave chests unopened until you need them. Attackers can only take what's sitting in your base above the protected amount.
- Save scaling resource chests (they grow with HQ level). Open small fixed-value ones first.
Speed-ups
- Fill alliance help first. Each help cuts a little off the timer.
- Use specific speed-ups (Build, Research, Train, Heal) before universal ones.
- Save the rest for the matching Alliance Duel day, ideally in a matching Arms Race phase.
- Exception: spend right away on HQ upgrades that unlock a new troop tier (HQ 20, 24, 27, 30).
Don't speed up farms or mines, and don't hoard months of speed-ups while you're stuck on old troops.
Stamina
- Regenerates 1 every 5 minutes, but only while you're under 120. At the cap you're wasting it.
- Claim the two free stamina drops (around noon and evening) every day.
- The VIP Store sells stamina cheaply once a week. Normal refills get more expensive each time.
Spend it in this order:
- Radar missions.
- Rallies: Doom Elite and event bosses. Joining someone else's rally is usually free.
- World map zombies, ideally during an Arms Race Drone Boost phase.
See also: Diamonds, Gold Bricks & VIP, Stamina, Radar & Zombie Invasion.
Sources
Compiled from community guides (last checked October 2026). Several are run by top-up shops, and numbers change with updates and differ by server, so double-check anything important in game.