Do achievements unlock in the demo?

No. They only unlock in the full game.

Which achievements take the longest?

Skate or Die asks for 10 hours of play, and High Life asks for a high score of 10,000 or more.

Contents · 3 sections

Achievement	How to unlock it
Air Time	Leave the lip and catch air.
Ambiance	Turn on any weather (fog, rain, storm, wind, snow, fireflies…).
Coping Skills	Grind the coping.
Costume Change	Switch to a rider other than Skater.
Four Digits	Reach a score of 1,000 or more.
Ghost Rider	Enable Idle mode.
Gone Streaking	Reach a trick streak of 3 or more.
Ground Game	Pull a ground hop like an ollie or kickflip.
Hide & Seek	Hide Desktop Halfpipe with Ctrl+Shift+0.
High Life	Reach a high score of 10,000 or more.
In the Weeds	Turn trees on.
Lay Pipe	Change the size of the pipe.
Sesh	Play for 30 minutes.
Skate or Die	Play for 10 hours.
Soft Focus	Set pipe opacity to Soft.
Word Up	Land an air combo of 2+ letters or numbers.

Desktop Halfpipe has 16 Steam achievements. Here's every one and how to unlock it. You can track them in game under Collectables > Achievements.

How many achievements are there? 16.
Do achievements unlock in the demo? No. They only unlock in the full game.
Which achievements take the longest? Skate or Die asks for 10 hours of play, and High Life asks for a high score of 10,000 or more.

Something wrong or missing on this page? Suggest an edit in #wiki-suggestions on our Discord, with the page name All achievements as the title.