EvoHero is an idle game built on merging: you buy gladiators, drag two identical ones together to combine them into a stronger tier, and they fight automatically for gold that buys more gladiators. Clicking a training dummy tops up your income.
It's the classic merge-idle loop, well tuned — the temptation to buy more units competes constantly with the need for board space to merge them.
Drag one gladiator onto another of the same tier and they combine into a single stronger one. Keeping a free slot open is essential, because a full board can't merge.
Yes — the gladiators fight and earn automatically, which is the point of the idle format.
Yes — a light browser game with nothing to install.