Here is the full list of all 19 Roads of time achievements.
Collect all trophies
Beat Dr. Terrible
For beating pack 4
Beat all levels with 3 stars
For activating the Ra's altar
Defeat Anubis' thief henchman
Defeat the lion guard
For beating pack 3
Upgrade your base to lvl 3
Beat 30 levels with 3 stars
For beating pack 2
Use time stop
Use work speed boost
Beat 15 levels with 3 stars
Draw petroglyph
For beating pack 1
Use walking speed boost
For building buildings
For clearing obstructions