It runs the game
Describes where you are, plays the people you meet, and decides what happens next. You say what you do; it tells you what that costs and what it changes.
Media
See it before you sign in.
Walkthroughs of the real thing — every picture taken from the running application, every callout pinned to the control it describes.
What this is
One player. A whole edition.
Most tools assume you have four friends and a free Saturday. This one assumes you have an hour. It runs the world, plays everyone in it, and settles every roll against the printed rules.
It knows the rules
Not a summary of them — the actual 3.5 shelf. Grapple, turn undead, spell resistance, prestige class entry, the lot. Where it is unsure it says so rather than inventing something plausible.
It shows its work
Every number opens. An armour class is not 35, it is 10 −1 size +7 Dex +19 natural — each part with its type, its source and its page.
The difference
Every number opens.
3.5 is a modifier-stacking game. The reason its character sheets take an afternoon is that every number on the page is a sum whose parts came from six different books — and the reason arguments start is that nobody can reconstruct which parts.
Here, you tap the number. Bonuses that did not stack are still printed, struck through, with the rule that killed them. Nothing is hidden to make the total look tidy.
35
Armor Class
10baseevery creature
−1sizePHB p134
+7Dex modifierDex 25
+19naturalPHB p171
+2naturalbarkskin
a natural armour bonus does not stack with another; the larger applies
35total
touch 16 · flat-footed 28
The part nobody else does
It is allowed to say “I don’t know”.
An AI that always answers is an AI that sometimes makes rules up, and at a 3.5 table that is worse than useless. This one returns one of three answers, and the third is a real answer.
Legal
The rule was found, checked, and it permits this. The citation comes with it.
Blocked
A specific printed requirement is not met. It names which, and the page.
Unproven
Something could not be established. It says what, and what would settle it. It never rounds this up to a yes.
The shelf
Read out of the books, not off a wiki.
Every record carries the book it came from, the printed page, and a grade for who published it — from A, a core rulebook, down to X, publisher not established. A record that is only a name and a page says so instead of pretending to be a rule.
Sourcebook text itself is never reproduced. The archive tells you where to look; the book stays the book.
Roll something.
Sign in to build a character, search the archive and play. The world remembers what you did.