Back to Castral

Press Kit

Castral

Castral is the fastest, cleanest dice roller for tabletop RPG players. Roll any standard polyhedral die with a single tap — d4, d6, d8, d10, d12, d20, and d100 — and see your result instantly. No accounts. No ads. Works completely offline. Designed for players of Dungeons & Drag…

App icon

Castral app icon

Direct link: https://obelisk.club/apps/dnddiceroller/icon.png

Theme color: #F0EEE9

Boilerplate description

Use any portion freely. For coverage assistance, email below.

Castral is the fastest, cleanest dice roller for tabletop RPG players. Roll any standard polyhedral die with a single tap — d4, d6, d8, d10, d12, d20, and d100 — and see your result instantly. No accounts. No ads. Works completely offline. Designed for players of Dungeons & Dragons, Pathfinder, and other tabletop RPGs who want a lightweight, distraction-free tool that stays out of the way. — Tap any die to roll instantly — Natural 20 and critical fail highlights on d20 rolls — Roll history so you never lose track — Clean, minimal design with light and dark mode Pro upgrade unlocks: — Dice expressions: roll 3d6+2, 2d10-1, or any combination — Unlimited roll history — Roll statistics per die type One-time purchase. No subscription.

Key features

  • Instant one-tap rolling for all standard dice: d4, d6, d8, d10, d12, d20, d100

  • Natural 20 and critical fail detection on d20 rolls

  • Roll history with relative timestamps

  • Pro: dice expression roller — 3d6+2, 2d10-1, and more

  • Pro: unlimited history and roll statistics

  • Fully offline — no account, no ads, no tracking

Download links

Founder quote

“Castralis built around one principle: your data stays on your device. We don't want it, we don't store it, and we don't need it to make the app work. Everything that can run locally, does.”
— Peter Zhang, solo developer, Obelisk Club

About Obelisk Club

Obelisk Club is a portfolio of focused, local-first Mac and iOS productivity apps built by a solo developer. The portfolio includes 13 apps spanning note-taking, screenshots, photo workflow, beverage tracking, file compression, and more — all sharing a single principle: software that works without an account, without a cloud, and without a subscription.

Press contact

obeliskclubclub@gmail.com

https://obelisk.club

Happy to share a complimentary Pro promo code, schedule a Q&A, or provide additional materials. Typical response within 24 hours.

Quick facts

App name
Castral
Maker
Peter Zhang · Obelisk Club
Theme color
#F0EEE9
Contact
obeliskclubclub@gmail.com