The seed is the only thing you need to restore a wallet.
I have never used darkwallet, so i can't give you a detailed path to restore your wallet.
But isn't it possible to create a new wallet using the old seed? And afterwards either sending your coins to a new address or exporting the private key?
I don't know how darkwallet derives keys from a seed. Might be worth checking their
github.
Bitcoin doesn't have "stealth address (es)"
import your seed phrase into a compatible wallet with the correct derivation path and it will generate your private key & address too.
He is talking about the
Darkwallet for bitcoin.
I am not sure whether this wallet supports BIP32 (HD wallets) or BIP39 (mnemonic seed).
@OP: Does your seed consist of 12/18/24 words? Or does it look like a random string? (Do not expose your seed to anyone!)
Edit: OP, you can export the private keys by restoring a wallet with your 12-word seed, then click 'Settings --> Tools --> Export Private Keys'.