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Composter

The Build A Ring Farm Composter, explained.

Added in Update 3, the Composter turns spare crops and resources into rewards — including a shot at the elite Cosmic mutation (8×). Here's what it does and how it compares to the other Cosmic sources.

What the Composter does

The Composter takes crops and resources you'd otherwise sell and processes them into rewards over time. Its headline payout is a chance at the Cosmic mutation (8×), without spending the $25T a Cosmic Spray costs. Treat it as a passive, long-game source rather than an on-demand one.

Composter rewards worth tracking

The Composter is also a seed source. These are the currently tracked seed rewards; open the seed database for source notes and pending-verification flags.

Compost Hydra

Divine

$125,000 base value

Highest base income in the Divine tier. 1% pick from the Composter's Prime Compost reward pool (reach the tier by submitting ~55B in seeds, then pull the lever). Grow time pending verification.

Open seed details

Garden Devourer

Transcended

$350,000 base value

Update 4 Composter reward.

Open seed details

Muck Monarch

Transcended

$525,000 base value

Update 5 Composter reward. Grow time pending verification.

Open seed details

Dataset snapshot: 2026-06-27. Values marked pending verification stay visible so you can distinguish confirmed numbers from gaps.

Three ways to get Cosmic (8×)

Cosmic is spray-only from weather — no event triggers it. These are the three routes to it.

Composter

Crops + time

Passive. No cash cost, but slow. Best if you're sitting on surplus crops.

Plant Rush shop

25,000 tokens

Earned from the Plant Rush event. Reliable if you grind the event.

Cosmic Spray

$25T cash

Instant and guaranteed, but the most expensive option in the game.