Current answer

Dream Park starts on a deserted island and grows through new venues and facilities. Official sources say Lives and minigames provide resources for expansion, which can unlock shops, minigames and other features; facility names, costs and build times are not published.

Verified facts

SettingA deserted island developed into Dream Park
Resource sourcesLives and minigames
Expansion targetFacilities and new venues
Confirmed unlocksNew shops, minigames and features

The verified facility loop

The official System page says players gather resources in Lives and minigames, then use them to expand the park. Expansion unlocks new features such as shops and minigames. The Park page frames this as building up venues together with holomems on a deserted island.

Why there is no best build order

A useful optimization guide needs facility names, prerequisites, costs, timers and reward changes. None of those structured fields appears in the checked public pages, so the guide presents the loop without inventing an upgrade sequence.

Resources are confirmed only in general

The official wording confirms resources as a class but does not name a currency or material set. Invitation tickets, outfits and cards are separately named in the progression system, but the sources do not establish that they pay facility costs.

Sources