Age of Mythology: Retold

This is possible in about fourteen minutes. Start a skirmish with one AI on lowest difficulty. Set ressources to infinite. Start with Kronos. If you are comfortable with it, increase the games speed.
At the start auto-queue villagers and build a temple, research "Temporal Chaos" while building three Economic Guild buildings. These can be timeshifted in 8 seconds flat. The shortcut for it is alt+c. Meaning you can, if you are comfortable with a mouse and use the shortcut, do three timeshifts per ten seconds. So you'll have 200 in about twelve minutes.

I never got attacked once by the AI in the meantime.

This is an easy achievement.

Start a skirmish with the Atlanteans using Kronos
Settings:

• Standard Mode
• Game Speed Fast
• Infinite resources
• Reveal all
• 1v1

Start:

1. Begin by building the temple and then upgrade to age 2, choose any god you wish.
2. At the temple make the Temporal Chaos upgrade.
3. Build only around 5 houses.
4. Click on each house and use the time shift ability in their menu to move the building. Do this with each house continuously until you have shifted 200 times, and you will gain this achievement.

If you need more help with this you can follow my video guide below which will begin at this achievement: