retro achievement for Stargate

Good Samaritan

Full Circle

Been There Done That

Point and Shoot

Alien Technology

Last Stretch

Balancing Act

Ruins Acrobat

Don't Mind Me

I'll Be Back

I Swear He Knew...

Air Superiority

We Meet Again

Maximum Preparedness

No One Left Behind

Free City

No Mercy

Technophobia

Sabotage

Dead God of Death

Overthrown (Easy)

Atomic Farewell (Easy)

Canon Ending (Easy)

Overthrown (Medium)

Atomic Farewell (Medium)

Canon Ending (Medium)

Overthrown (Hard)

Colonel Jack O'Neil

Atomic Farewell (Hard)

Canon Ending (Hard)