Here is the full list of all 49 Streamline achievements.
Eliminate a Runner that is stunned.
Eliminate yourself. :(
Eliminate a Runner in a section that is closing off or has closed off.
Stun the Hunter.
Eliminate another Runner during Sudden Death.
Taunt while the Hunter can see you.
Play at least 10 games of Streamline!
Don't move for 30 seconds.
Have someone bet over 10,000 credits on you.
Have someone bet over 1000 credits on you.
Reach level 2.
Be within 5 meters of another Runner when they are eliminated.
Be within 3 meters of the Hunter and then get 25 meters away.
Eliminate the Runner with the most points with at least 5 other Runners still standing.
Be one of the last 25% Runners standing.
Get stunned.
See the Hunter eliminate another Runner.
Have someone bet over 100 credits on you.
Be the last Runner standing and eliminate the Hunter.
Be the last Runner standing.
Don't touch the ground for 5 seconds.
Eliminate all Runners with more than 90 seconds left.
Eliminate a Runner that has not seen you in the last 10 seconds.
Eliminate a Runner in the air.
Eliminate a Runner from behind.
Eliminate a taunting Runner.
Eliminate a Runner that picked up points dropped by another Runner in the last 5 seconds.
Eliminate the Runner with the least points with at least 5 other Runners still standing.
Eliminate a Runner while wall running.
Eliminate 5 Runners in under 20 seconds.
Eliminate 10 Runners in under 30 seconds.
Stun 10 Runners in under 30 seconds.
Stun 10 Ghosts in under 30 seconds.
Wall run for 10 seconds.
Sprint for 30 seconds without stopping.
Loot 3 orbs from eliminated Runners in under 10 seconds.
Recover from less than 5% health.
Get stunned and then stun another Runner within 5 seconds.
Stun another Runner and then get stunned within 5 seconds.
Stun 10 Runners in 30 seconds.
Reach level 5.
Reach level 10.
Reach level 25.
Reach level 50.
Unlock one cosmetic item.
Unlock five cosmetic items.
Unlock twenty cosmetic items.
Unlock fifty cosmetic items.
Play at least 100 games of Streamline!