31/13 builds online educational games where students master real-world skills — one level at a time.
Navigate the real cost of finding a place to live — renting, buying, and everything hiding in the fine print.
PLAY →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 →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 →Three job offers, one desk, twelve months. The biggest salary isn't always the best deal — the fine print knows why.
PLAY →Race compound interest from 18 to 65. Start early, hold on through the crashes, and watch time beat money.
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 →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 →Custom educational games for schools, districts, and organizations. One developer, start to finish.
ruben.yarbro@decaturschools.org ↗