Replay the game with a different opening choice each time. The creator names six actions: find your family, reach a shelter, help strangers escape, take a gun, confront police robots, or attempt to intercept the missile. These are six starting options, not a verified count of six endings. The exact triggers for each ending have not been established.
Play for free and understand the premise
Open 20s till dawn on itch.io and select “Run game.” Wolkyen published the browser game on October 23, 2026 at 05:25 UTC for the 20 Second Game Jam 2026. A news report warns that a nuclear missile will strike in 20 seconds. According to the developer, paths unfold in real time and your decisions affect the final moments. The jam requires a free browser version and gameplay lasting no more than 20 seconds; exact internal timing was not independently measured.
A route-by-route checklist
- Start the game and read its on-screen prompts. The public description does not specify keyboard bindings or exact button positions.
- Choose the family route first. Note any follow-up decisions and the text or scene shown at the end.
- Restart and choose the shelter route. Compare its result with the family attempt.
- On separate runs, select help strangers escape and take a gun. Record what happens after each choice instead of treating them as the same branch.
- Test face the police robots and intercept the missile in separate runs. An attempted interception is not proof that the missile can be stopped.
- If a route offers another decision, repeat that route and change only that decision. Compare the ending screen before declaring a new ending discovered.
| Opening decision | What to inspect |
|---|---|
| Family | Whether you meet them and what the final scene says |
| Shelter | Arrival and the resulting scene |
| Help strangers | The rescue action and its outcome |
| Gun | Available actions after obtaining it |
| Police robots | What happens during the confrontation |
| Missile | The result of the interception attempt |
FAQ and common mistakes
Are there exactly six endings? Not verified. Six choices are advertised; the total number of endings is not. How do I stop the nuke? The jam listing invites players to find a way, but no tested input sequence or successful outcome is available here. Does the countdown guarantee a specific ending? The exact timeout behavior has not been tested. What keys do I press? Follow the game interface; the developer's public text gives no bindings.
Takeaway and sources
Test all six opening choices, then vary one later decision at a time. The apocalypse is apparently 20 seconds away, yet the decision tree has time for a family reunion, a rescue mission and a robot confrontation.
Sources: official game page, jam entries and rules, checked October 26, 2026 JST. Two ratings averaging 5/5 were visible. No firsthand playthrough, ending map, exact controls, original X post or verified social reach is claimed.
