- 49,773 Achievements Earned
- 10,097 Players Tracked
- 26 Total Achievements
- 15,206 Obtainable EXP
- 1,170 Gamerscore
- 271 100% Club
Finish every test chamber in Chapter 1 of "Portal Proficiency".
10
3.13%
Ultra Rare - 1172.00 EXP
You have not earned this achievement yet
Log in to view progress