Keycards and player-bound card readers for redstone access control. A NeoForge mod for Minecraft 1.21.1.
Place a card reader — it binds to you. Register a blank card on it and the card becomes a keyed keycard; using a registered card on the reader emits a 3-second redstone pulse. That's the whole loop: doors, vaults, and machines that only open for the right card.
On top of that:
- Four reader variants — Insert, Touch, Swipe, Advanced. Identical behavior, different looks, four visual states each (idle / accepted / denied / register mode).
- Fork duplication — the Card Duplicator copies a card onto a blank one. The copy inherits everything the source could open at that moment; afterwards the two are completely independent cards. No remote kill-switches, no orphan-key bookkeeping.
- Manager & Member access cards — a manager card's registrations also apply to every member card it issued. Duplicate a manager onto a blank card to issue members, or onto a blank manager card for a co-manager. Possession is authority — no player binding.
- Golden Keycard — a skeleton key that operates any reader and can arm register mode on readers you don't own (creative-only for now).
- Estate Keycard — crafted, then right-click to bind it to you (two-step confirm). It then works like a golden keycard, but only on the readers you own — and it keeps working even after you hand it to someone else.
- Per-card control — one press in register mode always toggles exactly the card you're holding: accepted cards get removed, rejected cards get registered. Related copies are never affected. (Member cards are exempt — they're managed only through their manager card.)
- Audible feedback — high bell = pass, bright pling = registered, low pling = removed/cancelled, low bass = denied. Vanilla note-block tones, no custom assets.
- Dye recycling — craft any card with a dye to reset it into that color's blank card.
| Mod | What you get |
|---|---|
| EMI | The machine processes as recipe categories: Card Registering (blank/keycard → keycard, per color) and Card Duplicating (fork / issue member / co-manager, per color), shown as a left-to-right process with the machine as a hoverable catalyst. |
| Jade | Readers show their owner and register-mode state; duplicators show whether a copy is pending. |
Localized in 7 languages: English, 한국어, 日本語, Deutsch, Español, Nederlands, 中文(简体).
- User manual (한국어) — every interaction, status light, and recipe in one place.
- Changelog — full version history.
| Version | Highlights |
|---|---|
| 0.0.1 | Four reader variants, 16 colored keycards with unique keys, player binding, redstone pulse, golden keycard, 7-language localization |
| 0.0.2 | Card Duplicator, unregister, golden full reset, user manual |
| 0.0.3 | Snapshot-fork duplication, per-card register/remove toggling |
| 0.0.4 | Manager/member cards, co-managers, registration cap config |
| 0.0.5 | Blank cards split from keycards — unkeyed vs keyed at a glance |
| 0.0.6 | Card family rename; every item type in the creative tab |
| 0.0.7 | EMI recipe-viewer integration |
| 0.0.8 | Naming corrections; EMI recipes for every color |
| 0.0.9 | Feedback tones, Jade support, crown manager texture, plain-language descriptions |
| 0.1.0 | New blank card recipe |
| 0.1.1 | Estate Keycard (owner-scoped master key) |
| 0.1.2 | Configurable pulse length, reader ownership transfer command |
- Minecraft 1.21.1
- NeoForge 21.1.233+
- Issue tracker — bug reports and feature requests (templates provided).
- Discord
MIT