In-game objects & elements

What is a Sandbox: the final product combined from objects, land slots, and rules. It can be traded as an NFT item.
There are two types of Sandboxes.
Default Sandboxes: provided by the developers and initial playground for the players. The player must spend a small amount of soft currency to enter it or hard currency to purchase a copy of it. All the income goes to the developers.
Player-created Sandboxes: content generated and provided by the players. Players other than the owner must pay a fee to enter/purchase it. The fee is defined by the owner and part of it (tax - calculated by %) will be sent to the developers.
Each Sandbox has its own rules, using preset game modes such as: deathmatch, hunting prop, rescue hostage, capture the flag, or custom game mode created based on a list of preset rules.