Secrets of the Past/Collections

Collections are a set of souvenirs and relics obtained within Secrets of the Past. Though not required to unlock new levels, collecting these items allows players to gain various bonuses in the form of talismans and treasure chests.

Every normal map features a total of 4 tradable charges, 20 rewards, 4 collectibles, and 1 artifact. Tradable charges are expendable items used in tandem with rewards to unlock both collectibles and artifacts. While more commonly found than rewards, players may often find themselves depleting their own supplies in order to complete their own collections. Certain charms from the item shop can help raise the probability of finding tradable charges. Rewards, despite being more numerous in terms of quantity, are more rare to find. The third tier of items come in the form of collectibles, 4 of which happen to be associated with 5 different rewards. These types of items as well as artifacts have their own historical descriptions that appear once obtained.

Later updates include an atlas which helps players track their research gauge and switch between different maps more easily. A filter is also added to help sort through different treasures and artifacts not yet acquired. More recent changes adjusted the amount of tradable charges needed to unlock both collectibles and artifacts with 4 for the former and 8 for the latter. These item types have also been given new point values with collectibles being worth 10 points and artifacts yielding 30 points.

While each map has its own unique set of treasures, they eventually cycle between certain sets from maps 170 to 309.

Collection List
Maps 1~30=

Map 30

 * -|Maps 31~60=

Map 60

 * -|Maps 61~90=

Map 90

 * -|Maps 91~120=

Map 120

 * -|Maps 121~150=

Map 150

 * -|Maps 151~174=

Map 164
Shares the same item list with Map 182 due to it being based on the Jurassic Period (ジュラ紀).

Map 174

 * -|Special Maps=