What is the progression order in Alliance Tower Defense?
Easy (City) → Medium (Wild Desert) → Hard (Canyon Bridge) → Crazy → Insane (Camera Lab) → Insane Endless. Each rung roughly triples the Coin reward, and Insane starts paying Scientist Crates, which feed the economy units every later team wants.
When should I move to the next mode?
When the current mode is boring, not just beatable. The community rule of thumb: probe a new map in 1-player at its lowest difficulty, and only raise players or difficulty after one clean solo clear. If a mode still requires your full attention, it is not your farm yet.
How long does it take to get a Mythic?
At a documented 0.1% rate, a 10-pull per 850 Coins, and pity at 1,000 summons, the worst case is roughly 85,000 Coins of pulls. With 100–1,000 Coins per clear and X2 title windows, plan the Mythic chase in weeks of farming, not days — and consider trading instead.
What should I unlock first: units or modes?
Modes. Mode unlocks pay the Coins that fund everything else, and Insane's Scientist Crate reward (95% Scientist Camera Man) upgrades your economy without a single summon.