31/13 builds online educational games where students master real-world skills — one level at a time.
The Budgeting Project · The Tax Project · The Offer Letters
ENTER →The Housing Project · The Car Project · Four Weeks · The Emergency Project · Debt Mountain
ENTER →Snowball Derby · Subscription Creep · Score Pet
ENTER →Sign Here · Scam Slam · Roommate Court
ENTER →Crossroads County · The Feed · Juror #7 · Line Cutters
ENTER →The Interview · The Group Chat · HR: Day One
ENTER →Earn, spend, save. Students run a monthly budget and learn what happens when the numbers don't add up.
PLAY →File a real 1040 from a W-2. Decode the boxes, find the refund, and see exactly where the money goes.
PLAY →Three job offers, one desk, twelve months. The biggest salary isn't always the best deal — the fine print knows why.
PLAY →Navigate the real cost of finding a place to live — renting, buying, and everything hiding in the fine print.
PLAY →Lease, buy new, or buy used — price all three and defend the choice on total cost, not the monthly payment.
PLAY →Survive a month on a tight income where time is a second currency. Every hour and every dollar is a choice.
PLAY →The transmission just died and you need the cash now. Weigh four ways to cover it — and what each one really costs.
PLAY →Pick a school, borrow the gap, then climb down the mountain of student debt. Every choice changes how steep it gets.
PLAY →Race compound interest from 18 to 65. Start early, hold on through the crashes, and watch time beat money.
PLAY →Every forgotten free trial feeds the blob. Cancel the zombies, dodge the dark patterns, and starve the Creep.
PLAY →Your credit score is a creature. Feed it on-time payments for three years and raise it from egg to dragon.
PLAY →A landlord, a lease, and traps written in invisible ink. Find them with the UV light — then negotiate them out.
PLAY →An inbox full of scams and a few real messages. Swipe fast, read the red flags, and keep your identity attached.
PLAY →Five roommate disputes, real receipts, one gavel. Rule like a judge — the crowd loves drama, not fairness.
PLAY →Four years, a handful of ballots, one small town. Decode the fine print, vote — and watch the square become whatever you chose.
PLAY →Nine posts, election week, total chaos. Share what's real, flag what's fake — and open a new tab before you trust anything.
PLAY →One trial, twelve strangers, thin evidence. Hold the line on reasonable doubt and turn a room that's already made up its mind.
PLAY →Same 25 voters, three totally different governments. Draw the districts yourself and learn gerrymandering by doing it.
PLAY →Land the Operations Coordinator job — application, interview answers, and the salary talk most people are afraid to have.
PLAY →What you post follows you. Watch a job offer survive — or evaporate — based on what's in the screenshots.
PLAY →You got the job — now survive the paperwork. W-4, benefits, 401(k) match: the forms that quietly decide your paycheck.
PLAY →Custom educational games for schools, districts, and organizations. One developer, start to finish.
ruben.yarbro@decaturschools.org ↗