Codex Ascendant | Tactical Card RPG on TestFlight

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Try a full run from TestFlight.

No account needed. Open the beta, choose a route, fight turn by turn, and leave with permanent progress for the next attempt.

Explore Wiki + CartaDex Official support

Direct entryno signup and no endless onboarding
Clear decisioneach turn shows risk, defense, and damage windows
Clear returneach run leaves an upgrade for your next build

Route, combat, deck, enemies, boss, and reward in one run

Each attempt connects six beats: choose the tower, read the turn, tune the deck, answer the enemy, reach the boss, then claim a piece that changes the next build.

01 · Choose Route

The tower sets length, boss, and reward pressure.

Scout Tower gets you into rhythm. Classic Spire raises the pressure. Bastion of the Rift asks you to survive more floors for more critical rewards.

Scout Tower selection, tower 3 easy — Tower 3A short run to warm up your deck.

Classic Spire selection, tower 5 normal — Tower 5More floors, more pressure, more reading.

Bastion of the Rift selection, tower 10 hard — Tower 10A longer climb with critical rewards.

02 · Learn Combat

You set up a window before spending the turn.

You do not win by throwing cards at random. Apply pressure, read the enemy opening, then decide whether to convert damage, block, or hold energy.

Combat tutorial applying setup with Spark Trace — PrepareFirst, mark the vulnerability.

Combat tutorial reading the enemy opening — ReadThe UI shows when to convert the play.

Biome lesson completed during combat against Slime — ConvertThe lesson resolves inside combat.

03 · Build Deck

Filter pieces and lock a build before returning.

Rarity, element, tag, and cost turn the collection into a workshop: find synergies, adjust slots, and enter the tower with a plan.

Card collection filter with rarity, type, element, and cost — FilterFind the missing piece fast.

Legendary collection showing cards equipped in the deck — CompareLegendaries show role, cost, and slots.

Fire legendary cards for tuning the deck plan — TuneThe deck shifts by element and damage plan.

04 · Read Enemies

Each rival changes what the turn asks from you.

Pressure starts before the boss: some enemies open with block, some threaten direct attacks, and some punish you if defense or damage arrives late.

Fight against an Obsidian enemy with low attack and defensive hand — ThreatA low attack still costs a clean turn.

Fight against Relicario enemy with active block — BlockBreak defense before spending damage.

Fight against Beast with high attack and fire cards — PressureDefend first or close the fight fast.

05 · Face Bosses

Each boss changes the run's rhythm.

These are not bigger health bars: bosses bring their own pattern, seal, or chain. Arrive with a tuned deck and decide when to defend, interrupt, or empty the hand.

Fight against Blood Regent with active boss cycle — PatternRead cycle, attack, and defense window.

Fight against Radiant Traitor with active fire seal — SealThe boss changes rules before the hit.

Fight against Crimson Matriarch with active blood chain — ChainIt punishes you if the sequence stays alive.

Fight against Void Dragon with active shell gate — ScaleIt asks for a long plan and prepared damage.

06 · Claim Rewards

The reward flows back into the deck.

A clear does not end on a summary screen: rare cards and set pieces open new defense, damage, or energy lines for the next attempt.

Rare card reward unlocked after clearing a floor — CardA new piece enters your collection.

Tempest Chest reward unlocked as a set piece — ChestThe set starts shaping your defense.

Tempest Blade reward unlocked as a set weapon — WeaponThe build gains a damage line.

Tempest Ring reward unlocked as a set accessory — AccessoryThe next run starts with a clearer plan.

For players who come for decisions

Not idle and not a stat sheet: choose risk, defense, and damage windows in short sessions.

Turn-based combat
Decks tuned between runs
Bosses with readable patterns
Persistent progress with no required account

Progress you can feel between runs

Each bracket opens a set and a new kind of pressure. Beat the boss, then return with a sharper build.

T1-T5Classic Spire
T6-T10Rift Keep
T11-T15Abyss Citadel
T16-T20Warlord Fortress
T21-T25Endless Throne

Sets that change how you play

Each tier has a target set. Collecting pieces is not cosmetic: it defines whether you lean aggressive, defensive, sustain, or control.

Eclipse Sovereignty Accessory — Accessory

Wiki synced with 150 cards, 87 enemies, and 18 routes for builds, drops, and boss prep.

Open the full set, card, boss, and route matrix in the Wiki

Routes and biomes by tier

Explore the routes behind each set. Open a tier to see its biomes and prepare where to farm.

T3 · Campaign entry

Tempest Regalia

Three routes that teach tempo, clean sequencing, and the first set that truly changes your identity.

Goblin Warrens boss intro art — Goblin Warrens

Troll Marches boss intro art — Troll Marches

Ogre Bone Chapel boss intro art — Ogre Bone Chapel

Goblin Warrens

Troll Marches

Ogre Bone Chapel

T5 · First real gate

Crimson Vow

The vampire dominion where attrition, execution, and punishment decide whether a build is truly alive.

Frostveil Bastion boss intro art — Frostveil Bastion

Crimson Vault boss intro art — Crimson Vault

Sanguine Foundry boss intro art — Sanguine Foundry

Frostveil Bastion

Crimson Vault

Sanguine Foundry

T10 · Tactical midgame

Aegis Bastion

The Arcane Order turns T10 into one institution and now sustains it with a native Arcane Knights family: squires, halberdiers, marshals, hounds, paladins, and a fortress colossus.