To qualify for these rewards certain conditions are required.
1) These challenges are applicable only for the Grand Finals.
2) Player must Win the Grand Finals in addition to challenge conditions to receive the rewards.
1) Savage Attacker (30$) : Win 3 games in a row with Warchief Civilizations (Aztec, Sioux, and Iroquois)
2) Economic Victory (10$) : Win with Trade Monopoly without resetting the timer for more than 3 times.
3) The old ways (10$) : Secure a victory after staying in colonial era for at least 20 mins.
4) Starved (30$) : Win without sending anything that gives you resource crates and/or resources.
5) Industrialization (10$) : Win after reaching Industrial age before 10:30 mins.
6) Strategist (30$) : Win after defending with just TC, Outposts, Forts, and other similar buildings without training any units (CM are allowed) for 15 mins. (Of Total Game time including age 1)
More Challenges will follow. Challenges may be edited if any flaw which can be exploited is found. If anyone else is interested to donate to increase the rewards let me know on discord or forums.
A player can take on as many challenges as he likes but is capped to win maximum of 100$. (Unless someone else would like to increase the reward pool.)