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grades and archive
Every pet hatches at C ~10 minutes after the week's first usage. At every molt it rolls a grade-up chance, one step at a time, and the grade never goes down — not from a bad week, not from Dormancy.
| Roll | Base chance | With activity modifier (×0.5 – ×2.0) |
|---|---|---|
| C → B | 25% | 12.5% – 50% |
| B → A | 10% | 5% – 20% |
| A → S | 3% | 1.5% – 6% (hard cap) |
The activity modifier comes from the same model-neutral molt signals (consistency vs your own baseline, rhythm quality, trait synergy, diversity) — token volume and model choice never change it.
On top of that, a small Food bonus rewards a heavy session: the more tokens you use before the window closes, the more it adds to that molt's roll — up to +15 points at 200M tokens, then it stops climbing. It's the one place raw volume helps; it can never dominate your baseline-judged odds, the A→S 6% cap still holds after it, and model choice still never matters. The pet screen's Food meter shows it filling live (see the Game Guide).
There is no pity guarantee — every roll can fail. The pet screen's Odds row shows the
exact live chance for your current → next grade (e.g. B → A 18%), grade-colored and updated
as your activity and Food move it — so the number you see is the number that rolls. At the
top it reads S ★ apex — no further rolls.
Your grade also unlocks the final evolution: a Prime won't ascend to its Apex form until it has reached at least grade B (alongside maturing through the stage). It's the one place grade and evolution meet — Apex is the mark of a sustained, good week, not a default. Everything else about evolution stays separate from grade.
A successful roll is a Gradeshift: the pet's palette visibly upgrades live.
The Dex is the detailed record of every species you've raised. Each species keeps its best 3 lives (ranked by grade, then total stats), captured as your pet grows — at each molt, every evolution, and at rebirth. So if a Murmur was a C the first time and an A the next, the Dex automatically keeps the A (and the C as a runner-up) — you never lose your best.
The Dex is a constellation sky, one per House (pan with ←→). Each species is a glow-dot star: owned species glow in their best grade colour (★ S gold · ◆ A violet · ● B green · ○ C grey); undiscovered ones are dim "?" points. Use ↑↓ to walk the stars; the focus rail on the right shows the selected star's sprite and identity. Press ⏎ or click a discovered star to open its detail page: a large sprite tinted to its best grade, its readiness banner, and up to three record cards — each showing the stats, generation, the date, a shareable DNA code, and the record's graft tier. Press Esc to go back.
Every record carries a DNA code — a copyable, license-key-style token like
TTX1-AFAA-21QC-V22T-E5V9-… that captures that life (species, House, grade, stats, traits, and
more). The same pet always produces the same code, and codes are designed to stay valid
forever: a code you share today still reads on any future version. On the detail page,
click a code (or the ⧉ icon) to copy it straight to your clipboard — no fiddly selecting.
Battles are here today (see Battles); DNA grafting (fusing a friend's DNA into
your pet) is coming in a later update.
A record only becomes battle-ready and graft-ready once that life reached the Evolved stage — about halfway up the growth climb. Younger records still show their DNA code, but it's sealed until they've matured enough, so battles and DNA grafting can't be farmed from fresh hatchlings. When grafting arrives, a stronger donor grade will nudge the result a little more (an S gives the biggest, but still gently capped, boost; a C gives nothing).
Every time your pet molts, evolves, or is reborn, that life's peak is automatically saved in the Dex detail page for that species. Each species keeps its top 3 distinct lives, ranked by grade then total stats — so your best runs are always there when you open the Dex, with no separate command needed. There is no tt archive command; the Dex is your living record book.