To send someone to school you just need 25Gold - only source = market
To reach a high lvl, start with 2 ppl - send one to school (always), the other one plants only trees.
Research the right techtree first,
After having everything researched build one well, you only need 1 person to drive the farm - no worries, you get automatically a new person if you die,
Build pens on all spots and buy cow, if u have two cow left in a pen they will breed more cow - cooking those brings the wealth
Selling is not necessary, the value of all goods count for the score.
level 39 so far ;) without sweating or problems
there is one ultimate weapon:
30 shot power
20 Energie consumption
9 firerate
0 Area
24 Homing Level
for only 11k $
--- only build this weapon and increase your Recharge and Shoot Power lvl ---
vote for my comment ;)
 "Farm and Grow"){kind=icon}
 "Cars vs Guns"){kind=icon}
 "Dragon Ambush 2"){kind=icon}
 "Atomic Strike"){kind=icon}
 "Shoot Pixels"){kind=icon}
 "White Line Bezier Fever"){kind=icon}
 "FW-TD2: master of elements"){kind=icon}
 "Battle of Britain: 303 Squadron"){kind=icon}
 "A Quest for Idle"){kind=icon}
 "Vector Siege TD"){kind=icon}
 "Bunni: How we first met"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}
we are planning a pvp mode