Base Building

Survivors Guide: Who to Use and Which Exclusives Are Worth It

How building survivors work, where to put each type, and whether Adventurer Taylor and Agent Shirley are worth buying.

Last updated Checked survivorstalent halltaverntaylorshirleyvipbuilderscientistnurse

What survivors are

There are two kinds:

  • Building survivors: specialists you recruit at the Tavern and assign to building slots in the Talent Hall. Each gives a passive bonus to the building it works in.
  • Exclusive survivors: two named survivors, Adventurer Taylor and Agent Shirley, who give account-wide bonuses. Their shards come only from VIP Exclusive packs. You won't find them in the Tavern or any event.

Building survivors

Rarities

Survivors come in five rarities: grey, green, blue, purple and gold. Only purple and gold can be upgraded, so grey, green and blue survivors are temporary. Replace them as better ones arrive.

Types and where they go

Each building has up to 4 survivor slots. What matters is the survivor's type:

TypeBonusPriority
BuilderFaster construction★★★ Fill first
ScientistFaster research★★★ Fill second
NurseFaster healing, more hospital space★★ Once you're fighting regularly
Farmer / Miner / Gold MinerMore food, iron or coin production★★ Whichever resource you're short on
MechanicLower building costs★
InstructorFaster troop training★ (more before VS Day 5)
OfficerBase defense★
KeeperStorage protection★
AttendantFaster Tavern recruiting★ Only after Builders and Scientists

Getting more survivors

  • Tavern recruitment: free recruits on a cooldown that gets shorter as your Tavern levels up, plus Survivor Recruitment Tickets.
  • Base gate rescues, radar missions and alliance gifts: quick, but mostly low-rarity.
  • Tickets: the Alliance Store and VIP Store are better value than the Diamond Store.

Upgrading

Purple and gold survivors go up to 5 stars. Each star needs that type's shards, Survivor Tokens and duplicates. Spare duplicates turn into tokens.

Exclusive survivors: worth buying?

Adventurer Taylor: yes, the best value of the two

Taylor gives you extra treasure chests from radar tasks every day. They can contain hero shards, resources and stamina. Because it's a daily bonus for the life of your account, the value keeps adding up.

StarsChests per radar taskDaily chest limitChest type
Unlocked15Rare Explorer
1★210Rare Explorer
2★315Rare Explorer
3★420Rare Explorer
4★425Deluxe Adventurer
5★5about 30Deluxe Adventurer
  • Where to get her: VIP Exclusive packs, VIP 1 through 7.
  • The sweet spot is unlock + 1★. It doubles her chests for a small spend, and it's the best value for most players.
  • 4★ is the next big step, because the chests upgrade to Deluxe. Worth it for steady spenders.
  • 5★: skip unless you're already a heavy spender.
  • To get the most from her, keep your radar levelled and do enough radar tasks each day to hit her chest limit.

Agent Shirley: only if you're already reaching VIP 8

Shirley makes your squads stronger: more troops per march and more attack for every hero.

StarsExtra march sizeExtra attack per hero
Unlocked+1+100
1★+2+225
2★+4+350
3★+6+475
4★+8+700
5★+10+1,000
  • Where to get her: VIP Exclusive packs from VIP 8 up to VIP 14.
  • The real cost is reaching VIP 8, not the pack itself. Don't chase VIP 8 just for her.
  • Verdict: skip if you're free-to-play or a light spender. If you reach VIP 8 anyway, unlock her, and only add stars if you're already buying the higher VIP packs.
  • Get Taylor to 4★ before spending on Shirley's stars.

Tips and common mistakes

  • Fill the slots first, then level up. An unassigned survivor gives nothing.
  • Focus shards on one survivor at a time instead of spreading them out.
  • Never upgrade grey, green or blue survivors. Replace them.
  • Don't put an Attendant in before your Builders and Scientists.
  • Don't look for Taylor or Shirley shards in the Tavern. They only come from VIP packs.

See also: Spending Real Money: What's Worth It.

Sources

Compiled from community guides (last checked October 2026). Several are run by top-up sellers or account marketplaces, so we cross-checked them where we could.

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