Just this once. What could go wrong?

JustThisOnce

JustThisOnce is a short psychological diagnosis game about small everyday exceptions, kindness, fairness, and uncomfortable consequences.

Short diagnosis game Multiple endings Shareable result cards Game Center achievements

A few choices. One result. Maybe a little regret.

JustThisOnce app icon

A diagnosis game about tiny exceptions.

Choose how to respond when kindness, fairness, rules, and hidden costs begin to collide.

Quick psychological choices

Answer short, uncomfortable questions about one-time exceptions and everyday decisions.

Multiple illustrated endings

Your choices lead to different results, from kindness traps to system-level thinking.

Shareable result cards

Save or share your diagnosis result with a dark, dramatic result card.

Ending collection and achievements

Replay to unlock more endings and collect Game Center achievements.

Each ending is treated like a character.

The diagnosis does not stop at a label. Each result has its own visual tone, from rule-breaking and hidden labor to kindness that quietly becomes a burden.

JustThisOnce iPhone screenshot showing the Kindness Infection ending
iPhone result cards for quick sharing
JustThisOnce iPad screenshot showing the Goodwill CEO ending
A darker gallery of moral outcomes

One small exception can change the whole system.

JustThisOnce turns ordinary customer-service dilemmas into a compact dark-humor diagnosis experience.

What you do

  • Answer short diagnosis questions
  • Choose between kindness, rules, and systems
  • Reach one of multiple illustrated endings
  • Replay to discover different results

Good for

  • Quick casual play
  • Psychological diagnosis fans
  • Dark humor and moral dilemmas
  • Sharing results with friends

Privacy-friendly by design.

JustThisOnce does not require an account for the core game. Game Center is used only for achievements.

What kind of exception do you make?

Take the short diagnosis and see where your choices lead.