Knowledge Day

Knowledge Day was a special event which ran from Sep. 7 to 14, 2019. It featured a special expedition, which operated similarly to a regular expedition (although with some important differences). This special expedition yielded event rewards which could be redeemed in the event shop for various new items.

Description



 * The expedition takes 15h to reach the target, with a 9h return time. There is no cooldown time, so you can send the expedition as many times as you can fit into the 7 day duration of the event.
 * The expedition costs 500 fuel to send. The troops you can bring overall on the expedition are 5I, 6St, 5HI, 6Sp, and 6V, of which you can bring 2I, 2St, 2HI, 6Sp, and 2V into each individual battle.
 * There are six ambushes that you must defeat over the course of the expedition. Unlike a regular expedition, these ambushes are not random, but will always occur precisely every 2h30m (with the expedition finishing immediately after you defeat the sixth ambush). Defeating each ambush gives a special reward chest.
 * Successfully completing the expedition yields 1 key to the main gate.
 * You can speed up each part of the expedition for Gold. Immediately advancing to the next ambush costs 50 gold, and speeding up the return costs 250 gold, so it's a total cost of 550 gold to skip all waiting time.

There is one extremely significant difference between this expedition and regular expeditions: every troop you deploy in battle becomes wounded, even if it didn't suffer any casualties in battle.

The event has two separate difficulties, which affects the level of enemy units, the rewards from individual battles, and the items available in the item store.
 * Players from level 4 to 19 play on the easy level.
 * Players level 20 and above play on the hard level.

Battle rewards


Each battle that you win gives you a special event chest. These chests appear at the front of your queue, and open immediately. These chests will contain the following:
 * a number of ionite drives, which can be used to purchase items in the shop
 * a number of manuals, of one randomly chosen type
 * a number of research items, of one randomly chosen type

The table below summarizes the rewards:

Event store
The ionite drives you receive in the event can be used to purchase heroes, hero skins, equipment, and research materials in the event shop. In addition to the ionite drive cost, the heroes also need to be unlocked by spending 7 keys to the main gate. This means that you have to complete 7 full runs in the 7 day duration of the event to get a hero, which requires either never losing any time waiting, or spending gold.

Some items are available in only the easy difficulty shop, some only in the hard difficulty shop, and some in both.

Enemy data
The below table summarizes the enemies you face in each battle:

Store pictures
These are screenshots of the easy difficulty store.