⚠ Major post-game / ending spoilers.
Big Game
Big Game is Big Walk’s later completion achievement. It comes after Big Goodbye and it is awarded when you complete the second-ending flow.
Big Game is Big Walk’s later completion achievement. It comes after Big Goodbye and is awarded when you complete the second-ending flow.
Finish Big Goodbye first. Then continue the same save, follow the unlocked post-game route and complete the second ending. The achievement registers when that ending flow finishes.
They sit on the same progression path. Big Goodbye is the main ending; Big Game is the later full-completion ending. They are sequential, not a choice.
Big Goodbye
Main ending. The post-game still remains after it.
Big Game
Post-game / full-completion ending. This is the later achievement.
| Big Goodbye | Big Game | |
|---|---|---|
| Official description | Finish the game | Completely finish the game |
| Medal | Ending1 | Ending2 |
| Layer | Main ending | Post-game ending |
| Order | First | Later |
| Overflow route | No | Yes |
| Full completion intent | No | Yes |
| Guide | /achievements/big-goodbye | /achievements/big-game |
Big Game is not the same thing as simply reaching 100% on a local checklist. The ending flow still has to complete.
Pick the state that matches your save. Each answer stays inside what the current build closes and hands the rest to its owner page.
Your current state
This is the progression spine the build closes. Everything above the second ending is a gate; Big Game itself is the ending-completion award.
Community guides consistently report that remaining puzzle and Purple cleanup matters. This page shows an exact mandatory count only where the completion dependency is closed.
Tick what is already true on your save. The page points at the next open step.
Finish Big Goodbye first, then come back to this page.
Open Big GoodbyeSaved on this device.
Big Game is awarded from the second-ending completion flow. The production data shows the achievement unlock being called when you continue from the Ending 2 completion screen.
Closed gameplay unlock hook:
This is the normal ending completion flow, not a special button. Finish the ending normally rather than quitting as soon as the final scene starts.
Functionally, Big Game is the game’s full-completion ending achievement, and current community guides consistently tie it to clearing the remaining main-game and post-game content.
For this site, the exact checklist stays owned by the 100% tracker. Only requirements closed by current game-data dependencies are labelled mandatory here.
So: Big Game behaves like a full-completion ending, but the mandatory count is not published as a serialized fact until the completion dependency closes.
These three groups are kept apart on purpose. The page never presents the community checklist as verified game data.
Reported consistently by independent guides, but not closed as a dependency edge here.
Until the completion dependency regression closes them, these stay off the mandatory list: exact mandatory puzzle count, exact Purple count as a dependency edge, exact required collectible total, exact required achievement count and the exact Overflow release threshold.
The Overflow Key is not another normal coloured five-cutter Big Key. It arrives finished from its own post-game state.
Do not take it to the ordinary five cutters.
Community aliases: final key / true-ending key / white key. This site uses Overflow Key.
Open the Overflow MonumentWork down this order before replaying any completion content.
1. Did you actually reach the second ending?
The Overflow Key is not Big Game. Holding the key is an earlier state.
2. Did you finish the second-ending flow?
Starting the second ending is not the medal completion hook. Finish the flow.
3. Do not quit at the first final scene
Let the normal ending completion and menu flow finish.
4. Check the platform achievement list
A missing toast is not proof the medal did not register.
5. Continue on the same host save
Post-game is a same-save continuation, so a different journey will not carry it.
If you already finished the Ending 2 completion flow and only the external list is empty, the remaining problem may be platform-side achievement sync.
A completion checklist being full is not itself the Big Game trigger.
Big Game is the Ending2 achievement, so you still need to follow the unlocked post-game route through the Overflow Key and the second ending, then finish that ending flow.
Finish Big Goodbye, continue the same post-game journey, complete the second-ending route and finish that ending flow. Big Game’s closed trigger is the Ending2 completion menu.
Community guides often call it the true or secret ending. On this site the name is the second / full-completion ending, and Big Game is the achievement.
Endings GuideYes. Big Goodbye and Big Game are sequential on one path, not two choices.
Big GoodbyeFunctionally it behaves like the full-completion ending achievement, but the exact checklist stays owned by the 100% tracker on this site.
100% TrackerCommunity guides report that remaining puzzle cleanup matters. This page only labels a requirement mandatory where the dependency is closed, so an exact puzzle count is not published as a hard gate yet.
The Purple layer is post-game completion content and is tracked separately. Its exact dependency edge to Big Game is still being closed.
Purple ChallengesThe official wording is "Completely finish the game", not "unlock every other achievement". There is no current verified evidence that unrelated gameplay achievements are themselves a direct Big Game gate.
The special post-game key released from the Overflow Monument route. It is not one of the ordinary coloured Big Keys.
Post-game GuideNo. Its route uses zero cutters and arrives finished from its own post-game state.
The name of the second-ending route and destination, not the achievement name.
No. Second Goodbye is the ending / destination label; Big Game is the achievement awarded when that ending flow finishes.
A full checklist is not the trigger. Big Game is the Ending2 achievement, so you still need to complete the post-game route and finish the second-ending flow.
Finish the ending completion flow and continue past the completion screen instead of quitting at the first final scene, then re-check the platform list.
Yes. The post-game is a same-save continuation, so both ending achievements come from the same journey.
Hosting and savesBig Game — Completely finish the game
Post-gameNot Unlocking?