Big Walk endings: Big Goodbye and the White Key

Big Walk has a main finale associated with Big Goodbye and a further completion route associated with Big Game. The Black Key takes you through the Wall toward the first finale; the White Key belongs to the later completion route. The steps below contain major ending spoilers. ^{[keen-ending]}

Reach Big Goodbye

Finish the colored-tower progression and the Black Tower. Use the Black Key at the Wall, then follow the route to the large black sphere.

Inside the final sequence, players lose normal voice communication and their distinguishing colors. Work with gestures and position cues to solve the cooperative rooms. The changes to voice and appearance are part of this section, rather than evidence that crossplay has broken. ^{[polygon-ending]}

After the puzzle sequence, color and speech return. The final exit identifies players by a combination of their body colors. Let the matching player pass and repeat as the mechanism selects the others. The main route ends after the group passes through. ^{[polygon-ending]}

Continue toward the White Key

Resume the existing host save. KeenGamer’s completion guide identifies a separate green collection building near the tutorial/Map Room area with 15 receptacles, accepting eight remaining red rewards and seven purple rewards. Filling that requirement produces the White Key. This building is separate from the Green Tower that unlocks the chairlift. ^{[keen-ending]}

Some guides describe purple challenges as post-game content, but Polygon reports that their southern island area can be reached earlier. You do not need to interpret an early purple reward as a broken save. The purple gourd guide explains the distinction. ^{[polygon-purple]}

Use the White Key

Return to the initial tutorial area and locate the small black sphere, now split to expose its key interaction. Use the White Key there and follow the opened completion route. KeenGamer documents this as the route to Big Game; Steam lists Big Game and Big Goodbye as separate achievements. ^{[keen-ending] [steam-achievements]}

If the White Key has not appeared, inspect the 15-reward collection building for an empty receptacle before starting a new world. The host’s save is the record of the group’s progress. Keep that host for the return session. ^[faq]