Is "毁灭" the best word to use here?
毁灭 = 'to destroy'
'ruined' here is an adjective that means '毁灭了的/ 残破的'
'ruined world' = 毁灭了的世界/ 残破的世界

Explore a beautiful, vast, and ruined world riddled with dangers and lost technologies.


探索一个美丽(的)，广阔而残破(的)，充满危险和失落(的)科技的世界。

The term 'lost technologies' is usually translated as 失落的科技 or 遗失的科技. '丢失' is more suitable for a recent event; 失落的/ 遗失的 is more suitable for a distant event
Either 残破的世界 or 破败的世界 is better than 毁灭的世界

美丽的世界

广阔而残破的世界

充满危险和遗失的科技的世界

探索一个美丽，广阔而残破，充满危险和遗失科技的世界。


When putting the three above phrases together to form a single sentence, you can just keep the last 的 and omit the rest. The  的 before 世界 serves as the adjectival marker for all the adjectives in this sentence
More example:

好看的车

贵价的车

全新的车

好看，贵价，全新的车