Long Life Spikes

Long Life Spikes makes new spike piles last up to 140 seconds and survive into the next round, so a pile can last for up to 2 rounds. It keeps the Smart Spikes targeting options and the 4x start-of-round speed boost. The piles turn into blue caltrops.

When to buy it

This upgrade fixes the Spike Factory's classic weakness: having no spikes at the start of a round. Its value depends on stockpiling, so it works best when other towers do most of the popping and the factory only cleans up.

• 1-0-3 is the usual crosspath: cheaper, with slightly higher damage output in most cases.
• Berserker Brew is a very strong buff here. It is cheaper than Long Life Spikes and, with both brew effects active, quadruples the damage output.
• It is usually not worth it in Apopalypse or modes that already keep spikes between rounds.

Spikes are not saved when you use Retry Last Round in CHIMPS, use a Continue or load a save, so it is strongest during an uninterrupted black border run.

Is it worth it?

Yes, as a reliable mid-game cleanup and as the road to Perma-Spike.

Frequently asked questions

Do Long Life Spikes carry over between rounds?

Yes. Piles last up to 140 seconds and carry over one round.

How much does Long Life Spikes cost?

$1,300 on Medium. All difficulty costs are listed on this page.

What crosspath for Long Life Spikes?

1-0-3 in most cases, for the cheaper cost and extra pierce.