tempa-death™ economics: the cloning bay explained

Most tower defense games make death a fail state. OTTTD made it a resource decision: heroes die, the cloning bay spins up a replacement, and you fight shorthanded until the queue clears. Understanding the true cost is what separates players who panic-clone from players who plan around the ledger.

The true cost of a death

A dead hero costs three things: the fixed queue time before redeploy, the DPS and utility your squad loses meanwhile, and — the subtle one — the positioning gap. A dead Assault isn't just missing damage; it's the chokepoint he was anchoring going undefended. Veterans cost more to lose because their XP'd skills were the loadout; a level-12 Medic flatlining mid-wave is a bigger loss than a level-3 anything dying twice.

When to eat the queue

Correct play isn't 'never die' — it's 'die cheap'. Advanced rotation: when a hero's death is inevitable, position so it dies cheaply — on a covered lane, not a critical one — and treat the queue window as a scheduled expense. In endless mode this becomes doctrine: rotate fresh clones to absorb deaths that would otherwise hit veterans, and the XP ledger stays positive. The players who treat every death as an emergency burn healing actives; the ones who treat it as accounting save them.

The Medic equation

This is why Medic is S-tier despite zero damage: every prevented death is queue time refunded, XP preserved, and a lane that never went undefended. Run the math — a Medic preventing two deaths per mission out-earns her slot against any alternative once missions run long. The counter-argument is real early game (missions end before deaths accumulate) and wrong in every long-format mode. Endless leaders run Medic for the same reason accountants run backups: the cost of not having one is bigger than the cost.