Uploaded November 2025 | Updated September 2026, 2 days ago
Five Bastl-brewed custom synth modes in the playful and fun Kastle 2 format.
The spiritual successor to the original and widely popular Kastle
Synth, introduced in the fall of 2016 and later updated to Kastle 1.5 in late 2017. It also inherits the DNA of the Kastle Arp from 2023, resulting in expanded musicality.
☝️ And don’t forget... if you already own a Kastle 2 device or a Citadel module, you can load and try any Kastle 2 firmware 👉 including this one!
🧪 Kastle 2 Alchemist is available now. Get it through link in bio in our bio
Take a look at our new release video starring the one and only @toyotavangelis and our dear friend @ne_konecna. Soundtrack by amazing @oliver_torr ✨ (You will find it in our bio as well.
Five Bastl-brewed custom synth modes in the playful and fun Kastle 2 format.
The spiritual successor to the original and widely popular Kastle
Synth, introduced in the fall of 2016 and later updated to Kastle 1.5 in late 2017. It also inherits the DNA of the Kastle Arp from 2023, resulting in expanded musicality.
☝️ And don’t forget... if you already own a Kastle 2 device or a Citadel module, you can load and try any Kastle 2 firmware 👉 including this one!
🧪 Kastle 2 Alchemist is available now. Get it through link in bio in our bio
Take a look at our new release video starring the one and only @toyotavangelis and our dear friend @ne_konecna. Soundtrack by amazing @oliver_torr ✨ (You will find it in our bio as well.
