Quick answer: Steam lists 12 achievements. Ten expose a requirement; Big Goodbye and Big Game are hidden and have no visible Steam description. The checklist below preserves that distinction.
Official Steam achievement list
These names and visible descriptions were read directly from Steam’s global achievement page on 11 August 2026. Steam does not display descriptions for its hidden rows.
| Achievement | Steam’s visible requirement | Related guide |
|---|---|---|
| Big Walk | Cross the drawbridge | — |
| Big View | Visit the map | Map Room / map guide |
| Big Pack | Wear a backpack | Backpack locations |
| Big Sit | Ride the chairlift | Chairlift guide |
| Big Help | Wear something on your hip | Hip-bag locations |
| Big Ride | Ride the train | Train guide |
| Big Climb | Reach the highest point | Chairlift guide |
| Big Tunnel | Enter a big tunnel | Tunnel guide |
| Big Wall | Go beyond the wall | — |
| Big Goodbye | Hidden on Steam | — |
| Big Makeover | Get shiny | — |
| Big Game | Hidden on Steam | — |
Fast route index for the verified system achievements
Big View follows the Red Tower’s Map Room unlock. Big Pack and Big Help use the two different bag types. Big Sit, Big Ride and Big Tunnel depend on the Green, Blue and Yellow tower systems respectively.
- Big View → open the Map Room and visit the map
- Big Pack → have a teammate equip a backpack
- Big Help → have a teammate equip a hip bag
- Big Sit → activate and ride the chairlift
- Big Ride → activate and ride a train
- Big Tunnel → unlock and enter the large tunnel
Steam versus PlayStation count
Steam lists twelve achievements. The third-party PlayStation trophy list records thirteen trophies because PlayStation adds Big Trophy, the platinum awarded for unlocking the rest. That platform-level platinum is not a thirteenth Steam achievement.
Why completion percentages are not copied here
Global percentages change continuously and can become stale within hours. The live Steam source below shows current rates; this evergreen checklist records the stable names and conditions instead.
Sources
Live Steam achievement page + PlayStation trophy-count cross-check · Last fact-check: Aug 11, 2026. See our editorial and corrections policy.
- OfficialOfficial Steam achievementsachievement names and visible requirements
- PlayStation trophy count and platinum listing