How the game works, and where its numbers come from.
Updated 28 September 2026
The short version. Decision Day is a college admissions simulator,
made for entertainment. Its odds are built from what each college publishes
about itself, chiefly its Common Data Set. No college is involved: the game is
not affiliated with or endorsed by any of them, its letters, scholarships and
results are simulated, and none of it is admissions advice.
What it is
You tell the Committee about yourself: a first name, your GPA, test scores if
you have them, your AP classes, your home state, the kind of high school you
attend, a major, and three traits that describe you. Then you choose up to
ten colleges from a list of 200 and apply, early where the college offers it.
You can visit up to three campuses. Then the letters arrive, and you open
them one at a time.
Each decision is drawn at your odds for that college, so the same
application can go either way. After the letters, every result comes with
the Reader’s Notes: a worksheet that shows what helped, what hurt, your
odds against the average applicant’s, and how the college says it
weighs each part of an application.
Not affiliated with any college
Decision Day is made by That’s Long Overdue. No college or university
is involved in it, has endorsed it, or has reviewed what it says.
College names and colors are used only to identify the colleges, the way
a guidebook uses them.
The game never uses a college’s logo, seal, mascot, wordmark or
letterhead. The travel posters and pen-and-ink drawings of real campus
landmarks are made for the game, and the pennants are our own design.
Every letter is marked Simulated, says at its foot that the
college did not issue it, and is signed “The Admissions
Committee”, never by a real person.
Nothing in the game is an offer of admission, a scholarship or financial
aid.
College and university names are trademarks of their owners, used here only
to identify them. SAT and AP are trademarks registered by the College Board,
and ACT is a registered trademark of ACT Education Corp. Neither is
affiliated with Decision Day.
Where the numbers come from
Everything the game knows about a college comes from public sources, and
every figure is recorded with the address of the page it came from.
200colleges, each researched on its own
8,500+sources recorded, almost all on the colleges’ own websites
175on the 2025–26 Common Data Set, the newest edition
The Common Data Set
Most U.S. colleges answer the same standard questionnaire every year, the
Common Data Set, and publish it, usually through their office of
institutional research. It is the game’s main source. Where a college
hasn’t published the 2025–26 edition, the game uses its newest
public one. The two colleges on the list that publish none are covered by
federal figures and their own pages. The game reads these sections:
C1
Applicants, admits and enrollment, overall and by residency: the admit rate
C2
The waitlist: how many were offered a place, and how many were admitted from it
C7
How the college rates 18 factors, from grades and course rigor to essays, character, where you live and your interest in the college
C9
The middle 50% of SAT and ACT scores, and the share of students who sent them
C11, C12
The high school GPAs of the entering class
C21, C22
Early decision and early action, with their admit rates
H2A
Merit scholarships: how many first-year students receive one, and the average award
The colleges’ own websites
Admissions pages: the testing policy for students applying now,
which often differs from the Common Data Set; the admission rounds;
interviews; and in-state and out-of-state admit rates at public
universities.
College and department pages: how a first-year student gets into
each of the game’s 18 majors, including majors with their own
admission and their own admit rates.
Honors and scholarship pages: named scholarships and honors
programs, who is eligible, and what they pay.
Cost of attendance pages: tuition, fees, housing and other costs,
which price awards such as half tuition.
“What we look for” pages: what the college says it
values, in its own words.
Federal data
The College Scorecard, from the U.S. Department of Education:
each college’s official name and location, its place on the map,
whether it is public or private, and any religious affiliation. Also cost
figures, where a college’s own page couldn’t be found.
IPEDS, from the National Center for Education Statistics, through
the Urban Institute’s Education Data Portal: how many first-year
students each college enrolled from each state in fall 2024. It shows
which states a college draws from, and which it rarely sees.
The U.S. Census Bureau: the state and county boundaries behind the
campus map and Use my location, and how much of each county is
urban.
How a college is researched
One college at a time, from the same brief:
Read the college’s newest Common Data Set and its own pages, and
record every number with its source. A number that can’t be found
or verified is left blank, and the gap is written down. Nothing is
guessed.
Check the admit rate against the college’s own reports, the
testing policy against its admissions site, and the hard-to-enter majors
against how it actually admits.
Record every judgment call separately, with the reason. A
college’s favorite traits come only from its own “what we
look for” wording, never from its reputation.
Build the college’s profile from the research with a script, so
it can be rebuilt and corrected at any time.
Programs awarded on family income, first-generation status or background are
left out, because the game doesn’t ask about them.
How the odds work
The game doesn’t hand everyone the admit rate. A college that admits 5%
of its applicants doesn’t give each of them a 1‑in‑20 chance: some are
far likelier to be admitted than others, and many have almost none.
It starts from the admit rate for applicants like you. At a public
university, that’s its in-state or out-of-state rate. At a private
college, it’s the rate for applicants from the U.S., without
international applicants, where the Common Data Set splits them out.
Then it compares your record with the college’s entering
class: your GPA against its students’ GPAs, your SAT or ACT
against its middle 50%, and your AP classes against what a college that
selective expects. Each counts as much as the college says it does in its
Common Data Set.
The more selective the college, the more your record matters.
Where most applicants are admitted, a strong record changes little. Where
very few are, an applicant in the middle of the admitted class has two to
three times the average applicant’s odds, and one far below it has
almost none.
The rest of the application moves the odds a little:
your three traits, weighed by how much the college rates essays,
recommendations, activities and character, and more where its own
words favor them;
where you live, where the college considers geography: a small edge
from a state it rarely sees or from a rural county, and a smaller
cost from a state it sees often;
your major, where students are admitted straight into it and it is
harder or easier to get into;
applying early, from the college’s own early admit rates. Only
part of the gap counts, because recruited athletes and other hooked
applicants crowd the early rounds, and no one in the game has those
hooks;
a campus visit, where the college counts an applicant’s
interest;
a religious high school, at religious colleges that weigh religious
affiliation;
holding back your test scores, which reads as a score just under the
college’s 25th percentile, since students who don’t send
scores are admitted at about half the rate of those who do.
Test-blind colleges never see scores.
Nothing is certain. The odds never go above 98%.
The decision is a roll at those odds. An applicant who
isn’t admitted may be waitlisted, about as often as the
college’s own waitlist numbers suggest.
The curves were checked against outcomes that colleges and researchers have
published, such as admit rates by SAT score and by GPA.
Scholarships
The scholarships and honors programs in the letters are real programs at
those colleges, taken from their own pages. The game decides who is selected
from each program’s published rules (GPA and test cutoffs, residency,
major) and from the strength of the application. Amounts are the
college’s published figures, and an award of a share of tuition is
priced from its cost of attendance. Where a college publishes only a range,
the amount is drawn from it. Where it publishes no amount, the game estimates
one around the college’s average merit award. Treat every amount as an
illustration, not an offer.
The letters
The letters are written for the game. They follow the way real decision
letters are built, a short fixed form whose variation lives at the edges,
and each college keeps one voice, drawn from its own public pages: whether
it names the entering class by its year, its word for the entering term, the
cheer on its admitted-students pages. They never copy a college’s real
letter. Where a letter cites numbers, such as how many students applied,
they are the college’s own figures, and only colleges that admit fewer
than 40% of applicants cite them.
What it leaves out
Real admissions offices read your essays, recommendations and
activities. The game stands in for all of that with three traits.
It doesn’t ask about family income, first-generation status,
legacy status or athletic recruiting, which count at many
colleges.
It doesn’t ask for class rank, so it misses guarantees built on
it, such as automatic admission to the University of Texas at Austin for
Texas students near the top of their class.
Where a college doesn’t publish something the game uses, such as
its students’ GPAs, the size of its waitlist or its admit rate by
residency, the game uses the college’s overall figures, or typical
ones for a college that selective.
Admit rates change every year, and the newest published figures are a
year or two old by the time students apply.
The odds are estimates, not predictions. Before you apply anywhere, read
the college’s own admissions website and talk to your school
counselor.
Corrections
If something about a college is wrong, email
admin@thatslongoverdue.com
with the college, what’s wrong, and where you found the right figure.
We check it against the source and fix it.
Privacy
Decision Day has no accounts and no ads. It counts which parts of the game
get played, never your name, grades or scores, and you can switch that off
in its settings. The details are in the
privacy policy.