World War Rising offer review

Same game as FFXV but in different setting. I mean completely identical except visuals, game balance and events they are running. Very generous offer. It requires some initial time investment, but if you follow tips it can be done rather quickly. They also usually run additional events that allow you to super-speed your development and thus complete offer even faster.

Terms: Install, Open & Reach Base level 10/11/12 or Reach power level 50k
Reward: $7 - $20
Platforms: Android and iOS
Offerwalls availability: AdGate, OfferToro, Adscend and others
Time investment: 1-2 days
First time investment: 5 days
Rating: A (Do it right away)

Tips:

• Each Base level have some other buildings requirements. Fulfill the requirements and upgrade it to next level. 
• Most of the time you wait until you have enough resources to upgrade next building (stones and metal).
• Build 1 farm, 1 lumber mill and all other resources shall be mines and quarries.
• Attack lvl 1 monsters when hero energy is full - monsters drop random resources, if you are lucky it will be stones and metal.
• Complete hero quests (they are refreshed every 6 hours) - they give some amount of all resources.
• Also events give lot of resources and gold (comparing to FFXV).
• If you get gold from drop, events or  - buy additional resources using gold. Also you get lot of gold if you register account from settings using any temp email address.
• To speed up resource gathering - attack lvl 1 monsters when hero energy is full and complete quests (which are refreshed every 6 hours).  Buy additional resources using gold. Also you get lot of gold if you register account from settings using any temp email address
• After you start building Base level 10/11/12 - offer will credit. 

50k power strategy:

• Upgrade Base and Library to level 11.
• Research missile strikes tech.
• Last tech will require 500k each resource so you will need to build and upgrade more resource buildings to hold that amount of resources. I usually build 5 farms, 5 lumber mills, 7 iron mines 8 quarries and max amount of power stations.
• Try to maximize hero level if possible
• After you research those techs you might need to get 1k-2k of power - do it by leveling up your resource and other building.