The Alien Invasion event in Mini War is a limited-time Alien Weather event where you farm Alien Cores from mutated crops, Alien Base Outposts, and the Alien King of Hill Base, then spend them in the Alien Shop for exclusive rewards.
The Alien Invasion turns Mini War into a war zone from space, and it runs on a completely separate economy built around a single currency: Alien Cores. Farm enough of them before the event ends and you unlock decorations and military buildings that never show up in normal play. Here’s how every piece fits together and where to point your troops first.
What changes when Alien Weather takes over the map
When the Alien Invasion kicks off, the whole map transforms. The sky goes dark, searchlights sweep across the battlefield, and a massive Mothership appears overhead and starts firing lasers down onto the map. Moments later a powerful Alien Boss lands right in the center — it’s one of the biggest world events in Mini War right now. The whole thing runs as a limited-time Alien Weather event, and it brings its own currency along with a set of rewards you can only earn while it’s active.
You don’t have to wait for the event to come around on its own, either. Buy the Alien Hive from the event shop, place it on your plot, and spend 100 Gems to skip the cooldown and summon the Alien Boss on demand.
Alien Invasion mechanics at a glance
| Mechanic | Details |
|---|---|
| Alien Farm mutation | 50% chance every 60 seconds for one farm to become an Alien Farm |
| Alien Farm duration | Stays mutated for 3–8 minutes |
| Mutated crops | Sell for +20% cash, or convert into Alien Cores |
| Alien Extractor | Processes mutated crops into Alien Cores |
| Alien Base Outpost | Grants Alien Cores when captured |
| Alien King of Hill Base | Spawns at a random spot during Alien Weather; hold it for the biggest payout |
Alien Farms, mutation, and the Alien Extractor
Alien Farms are the heart of the event’s economy. While Alien Weather is active, your ordinary farms keep rolling for a chance to flip into an Alien Farm, and once one does, everything it harvests for the next few minutes comes out alien-mutated. Those mutated crops are the raw material for Alien Cores.
Here’s the decision that actually matters: every batch of mutated crops can either be sold for the cash bonus, or fed into the Alien Extractor to become Alien Cores. The extra money is tempting, but Alien Cores are the only currency the event shop takes. If your goal is unlocking the event rewards before the timer runs out, run everything through the Alien Extractor — the cash won’t matter once the event is gone, but the exclusive buildings will.
Every way to earn Alien Cores
| Method | How it works |
|---|---|
| Mutated crops via the Alien Extractor | Harvest from active Alien Farms, then process the crops into Alien Cores |
| Alien Base Outpost | Capture the outpost for a direct Alien Core payout |
| Alien King of Hill Base | Capture and hold it for the largest, scaling payout |
You’ve got three income streams during Alien Weather, and the players who walk away with the most Alien Cores run all three at once rather than picking one. The steady trickle comes from your farms — keep them producing so there’s always mutated stock waiting for the Alien Extractor. The bigger, bursty rewards come from the event locations that only appear while the event is live, so pull up the map the moment Alien Weather begins and start moving troops.
Alien Base Outposts are the easier grab and pay out the instant you capture them. The Alien King of Hill Base is the prize: a single hold can land you somewhere in the 100 to 1,000 Alien Core range, and the amount scales with how long you keep control, so the top of that range isn’t a fixed number — treat the base as your highest-value repeat target and defend it for as long as you can.
Alien Core farming priority order
Keep every farm running
Crops can only mutate while your farms are actively producing, so never let them sit idle during Alien Weather.
Harvest alien-mutated resources
Collect crops from any farm that has flipped into an Alien Farm before its mutation window closes.
Convert them in the Alien Extractor
Feed those mutated crops into the Alien Extractor to turn them into Alien Cores instead of cash.
Capture Alien Base Outposts
Take every Alien Base Outpost you spot on the map for a direct Alien Core payout.
Send troops to the Alien King of Hill Base
Whenever it appears, commit your whole army to capturing and holding it for the largest reward.
The moment the Alien King of Hill Base appears on the map, send every available troop to capture and hold it — it pays more Alien Cores than anything else in the event, and the reward grows the longer you keep control.
Whether to rush the Alien Boss
The Alien Boss that drops into the center of the map is the event’s centerpiece fight, and it’s built like one — a heavy tank that will chew through a small army. If you’d rather not wait for it to land on its own, the Alien Hive lets you call it down on your own plot early, which is handy when you want the fight on your schedule.
Just don’t rush in undermanned. Line up a full force first, and if you’re mainly here for Alien Cores, it’s perfectly fine to keep farming and take the boss on when you’re ready rather than the instant it appears.
Spending Alien Cores in the Alien Shop
Everything you farm feeds into one place: the Alien Shop. Alien Cores are the only currency it accepts, and they go toward exclusive decorations and military buildings you can’t pick up anywhere else in Mini War. The full lineup isn’t locked down yet, so it’s worth opening the shop each time the event runs to see what’s stocked — and because the event is limited, start farming early if you want to clear it out before the timer ends.
Related guides
Frequently Asked Questions
How do you start the Alien Invasion event in Mini War?
What are Alien Cores used for?
Should you sell Alien-mutated crops or use the Alien Extractor?
How often does the Alien King of Hill Base spawn?
What are the Alien Boss stats?
Video help
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