These achievements can be earned by Year 5 every time without ever having to go to battle, I unlocked all 5 of the new title update achievements this way without fail.
- From the main menu choose to play a "Special Game"
- Pick the "Pioneers" game mode (Units are hired for free. Each building increases the cost of all buildings.)
- Choose to play on "Very Easy" difficulty
- When choosing your faction, tab to the left twice to pick the "Byzantines" (After acquiring the first point towards a belief, a second belief is immediately granted for free.) and then "Start Game"
- As soon as you start in Year 1, immediately hire 4 more "Peasants" to bring your total up to 5 and increase your annual gold to +500
- Click "End Year" to bring you to Year 2 and you will now have 1500 gold
- In the top left corner choose to "Construct a Building" and build a "Church"
- Choose to "End Year" 3 more times (taking you to Year 5) and a pop-up will appear for you to choose a new belief, and thanks to the Byzantines ability you can choose two beliefs at a time.
- Pick "Equality Church" & "Autonomy" as your beliefs and the achievement will unlock
That's all there is to it! Should take you no more than two minutes from start to finish to get your achievement and you can repeat these steps for all 5 of the belief trees (picking their respective beliefs of course).