Que al tener 1 granja lo maximo de madera que puedes tener es 100 y aunque sigas sacando madera esta siempre vuelva a 100

Al tener 2 granjas lo maximo de madera que puedas tener es 200 y asi...


Edito:

Bueno hice esto :v
Como lo convierto para todos los jugadores? no quiero crear 10 detonadores :v

[gui]Limite
   Events
       Player - Player 1 (Red)'s Current gold becomes Greater than (900.00 + (100.00 x (Real((Number of living Farm units owned by Player 1 (Red))))))
   Conditions
   Actions
       Player - Set Player 1 (Red) Current gold to (900 + (100 x (Number of living Farm units owned by Player 1 (Red))))
[/gui]

Edito Nº2:

Creo que ya lo hice

[gui]Limite 2
Events
Time - Every 2.00 seconds of game time
Conditions
Actions
Player Group - Pick every player in (All players) and do (Actions)
Loop - Actions
If (All Conditions are True) then do (Then Actions) else do (Else Actions)
If - Conditions
((Picked player) Current gold) Greater than (900 + (100 x (Number of living Farm units owned by (Picked player))))
Then - Actions
Player - Set (Picked player) Current gold to (900 + (100 x (Number of living Farm units owned by (Picked player))))
Else - Actions
[/gui]

Tu detonador bucle es la correcta forma de hacerlo, pero tienes leaks de Grupos de unidad que podrían laguear tu map luego de jugar un rato, te aconsejaría limpiarlos

Y como se hace eso?

https://www.worldofeditors.net/t49-fugas-de-memoria-gui-o

revisa este tutorial