Collectible card game · The Celestial Tide
ECLIPTICA
A thousand years of twilight are over. The Sun and the Moon woke up hungry, and the sky of Vesper is now a battlefield. You are a Weaver: a star in your chest and a whole tide in your hands.
Coming soon for Windows
A duel where the sky changes sides
Every card you play pushes the Celestial Tide, the same one for both players. Whoever reads the sky wins.
The Celestial Tide
A single bar shared by both players, from the Moon (−4) to the Sun (+4). Sun cards push it one way, Moon cards the other, and Eclipse cards bend it.
Apogee
When the Tide hits an extreme, that celestial body awakens: every unit of that aspect — yours and your opponent's — triggers its effect. Plan who benefits.
Four lanes, no retaliation
Units always attack straight ahead at the end of your turn. Only the attacker deals damage: position and timing are everything.
Seals
Face-down cards that trigger on their own during your opponent's turn. They only see the colour. The answer is positioning, or breaking them.
Echoes
The fallen leave an Echo behind. Playing onto your own Echo costs less and awakens Devour effects.
Ritual
Each turn you choose: Channel (more Energy) or Study (more cards). Grow, or know more?
Versus AI (3 levels) · 2 players on one PC · Online multiplayer with rooms · 3D board · Music that follows the Tide
The cards
Edition 1: the Dawnbreak Base Set (everyone gets it) and the Echoes of the Breaking pack set.
The world of Vesper
The Ancients built the Celestial Astrolabe: rings of bronze and light that held the Sun and the Moon in an eternal eclipse. For a thousand years there was neither day nor night. In the year 1000, the Astrolabe broke. Its rings fell as Star Shards, and the energy leaking from them now flows through the sky: the Celestial Tide.
☀ The Sun
Solaris, the Woken Sun. The highlands of Auren: order, oath and light, and a fire that purifies everything.
☾ The Moon
Noctra, the Hungry Moon. The lands of the Night: memory, secrecy and the dead, and a cold that would freeze the world.
◐ The Eclipse
The balance between them. The Twilight Line: time, the Clockmakers and the works of the Ancients.
The Chronicles of Vesper
Each edition of the game is a book of the saga. Five books, one broken sky.
ECLIPTICABook I · Dawnbreak- Book I · Dawnbreak
- Book II · Dusk being written
- Book III · Black Tide being written
- Book IV · Zenith being written
- Book V · Total Eclipse being written
Download
The game
Version 0.1.0 · free · Released October 15, 2026
Windows 10/11, 64-bit. Unzip and run Ecliptica.exe. If SmartScreen warns you, click “More info” → “Run anyway”.
SHA-256
44fa3dc294f835c36676897dade7851e3a013ed81af1a41235f2702af146d5acmacOS 11 or later (Apple silicon or Intel). Unzip and drag Ecliptica to Applications. The app isn't signed yet: the first time, right-click it → Open → Open. On macOS 15 or later, if it's still blocked: System Settings → Privacy & Security → “Open Anyway”.
If macOS says the app is “damaged”, open Terminal and run: xattr -dr com.apple.quarantine /Applications/Ecliptica.app
SHA-256
4786403850d37c39aaceea2bea98b7a4553f85e5b3c5a684e1ce973329d724f1System requirements
Windows
- Windows 10 or 11, 64-bit
- Graphics card with Vulkan 1.2 or Direct3D 12 support (up-to-date drivers)
macOS
- macOS 11 or later (Apple silicon or Intel)
- Metal support
Internet connection required. Detailed requirements will be published after more testing.