Metal → Deuterium
Exchange rate
Exchange at the Merchant: 1 Metal → 0.25 Deuterium.
Base rate from the game code: 1 Metal yields 0.25 Deuterium; a payout coefficient of 0.95 is applied (a 5% fee), so effectively 1 Metal → 0.2375 Deuterium. For example, 1,000,000 Metal turns into 237,500 Deuterium (the engine rounds the result down). This pair has no fixed volume cap — the per-transaction maximum depends on your Spaceport capacity. The reverse pair "Deuterium → Metal" trades at a base rate of 1 → 4 (payout coefficient 0.95); a round trip returns ≈90.25% of the volume, losing ≈9.75%. The exact in-game rate may differ: the engine adjusts it to demand and trade volumes, while the fee always applies.
The exchange is available at the Trader. The base rate is set in the game code; the actual rate shifts slightly with demand and trade volumes. Dark matter exchange is limited by the amount per operation.

