Research
The lever that pays off every week — and should never sit idle.
Research is permanent and affects everything at once. Unlike a single hero upgrade it keeps running in the background while you do something else — which makes it the cheapest improvement in the game, as long as the slot is occupied.
The trees
The Tech Center holds several research trees, unlocked one after another through the Military Base level: economy, heroes, units, the squads, the Alliance Duel, special forces, and the masteries of the three troop types. Higher Tech Center levels additionally speed up all research.
Alliance Duel first
One research stands out: Alliance Duel research. It raises your score in the weekly duel and later unlocks additional reward chests. At the start only chests 1 to 3 exist. Further levels add chests 4 to 6 and finally 7 to 9.
This is a loop: more chests give more medals, the medals go back into research, and next week gives more again. If you have not unlocked the extra chests yet, aim this research first.
The simplest rule
- The research slot should never sit empty.
- Overnight, start something long rather than something that finishes in twenty minutes.
- Save speedups for the Alliance Duel research day — there they count twice.
Experience from active play, collected in a running alliance. Not official information from the developer.
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