- Research all possible technologies across any # of playthroughs

- Pacify all minor faction races across any # of playthroughs

- Assimilate all minor faction races across any # of playthroughs

- Buy / sell all resource types on the marketplace across any # of playthroughs (one for strategics, one for luxuries)

- Buy / sell X amount of resources (excluding Dust) on the marketplace in total across any # of playthroughs

- Buy units on the marketplace from all major faction races across any # of playthroughs

- Buy units on the marketplace from all minor faction races across any # of playthroughs

- Buy X units in total on the marketplace across any # of playthroughs

- Upgrade X unit designs across any # of playthroughs

- Create X new unit designs across any # of playthroughs

What do you think ?