BLUECHIP STAR is a simulator in which you play a baseball player's career from start to finish. While making it, the question we held onto longest was not about graphics or the amount of content. It was how to handle odds.
Anyone who has played games for a while has probably doubted the odds on screen at some point. When something says 90% and fails three times in a row, you start to suspect the number is a lie. In fact, many games use hidden adjustments that differ from the displayed odds: a pity boost that quietly raises your odds after repeated failures, or the reverse, an adjustment that lowers them when you keep succeeding. These are designed to manage how players feel, but in the end they make the numbers on screen impossible to trust.
BLUECHIP STAR went the other way. There is one rule: every outcome is decided at exactly the odds shown on screen. A make-or-break move marked 55% succeeds exactly 55% of the time. To make that true, we built the game on seed-based determinism. A seed set at the start of each career is the source of every roll, and the same choices from the same seed always produce the same results. Structurally, there is no room for odds that change behind your back.
That was the objection we raised to ourselves most often during development. A game without a pity boost is cruel. Careers really do come up where a 55% move fails three times in a row. But the more we tested, the more convinced we became that this cruelty is exactly what baseball is. Even a .300 hitter fails seven times out of ten. Baseball stories have power because the failures are real. Failure has to be real for success to be real too. Instead of planting comfort in the odds, we chose to make the story after failure richer. The results are the second try after going undrafted, the tryout after release, and the rehab story after an injury.
We applied this principle to our revenue model as well. In the app version, the ad reward raises the odds card in front of you by 10 percentage points, and the rule is the same here. The moment you watch an ad, the number on the badge on screen updates first, and the outcome is decided at exactly that updated number. Watching an ad never quietly makes things go better, and skipping one never quietly costs you. A game where what you see is all there is. That is how BLUECHIP STAR respects baseball.
Want to live through the systems and turning points in this note yourself? Play BLUECHIP STAR, where you take one player's career from a middle school team all the way to retirement. No sign-up needed, so you can start right away. The app is currently available in Korean only.