Terraria (free post)

Sandbox games have different materials that allow you to build different tools, blocks and items that progressively increase their characteristics according to their materials and this allows you to advance in the game. 

My favorite game is Terraria, which is of these two categories of games, the game can be played between up to 10 people and there are several game difficulties, the world can be in 4 levels of difficulty that define the life of the enemies, and the character can have 3 difficulties that define how much you lose when you die, the most basic loses money and the most difficult you lose the entire character. The game is about defeating different bosses, each time more dif
ficult and purify the world of the infection that afflicts it.

For the battle you can choose 4 categories of attack, having weapons, armor and items specialized in these modes of attack. These types are Mage, Melee, Ranger and Summoner.

Already during the game, this has a linear and progressive development, while objectives are fulfilled new npcs are unlocked that allow information and items to facilitate the gameplay.

By defeating the bosses from lower to higher difficulty you advance in the game, and unlock new areas or materials. In the middle of the game the Wall of Flesh is defeated, and this makes the whole world evolve in new enemies, bosses and materials, new biomes appear and the game dramatically increases its difficulty.

The final boss of the game is the Moon Lord, who is inspired by Cthulu, HP Lovecraft's monster. After him you can continue playing, but there will be no new bosses.