Added in Upgrade 0.9.0. Infinite Worlds is a second world type that has no invisible bedrock boundaries so you are able to explore almost infinitely. The advantage of playing in Infinite Worlds is that unlimited chunks spawn which ensures you never runs out of Resources like wood, ore, stone, etc. and it also gives you extra space to build structures and buildings without restraint. The disadvantages of playing on Infinitive Worlds though is you can easily get lost from your home as there are no boundaries to stop you and it can cause a lot of lag and chunk generation problems on some devices. Listed below in no particular order are the Seed ID and a description of what you can exptect from five of the best seeds in Infinie Worlds.
-495809461
In this seed you start out between a desert and plains biomi and you will soon discover a giant village when you start exploring. There are also forests, lakes, and caves which gives you the necessary Resources to either build up the village even more or start building your own construction on the flat area that is nearby.
2431673
In this seed you start at the edge of three different zones. Plains to one side, a forest to the other, and a giant mesa at the other. The mesa has several cave entrances, one of which has gold ore, the caves themselves will take you down into mineshafts where you can start Mining straight away.
1408106526
In this seed you start near a river which if you follow will take you to a giant mountain which if you make your way to the top will lead you to a village. On the other side of the mountain situated at the bottom is another village for you to explore.
1413755523
In this seed you start in the middle of the ocean where there are several buildings that are connected by a wooden walkway. Once you start exploring this ocean village you will eventually come to land that will have Animals, mountains and various biomes to explore.
1074879716
In this seed you start near a couple of villages, one of which has a stronghold that contains loot and an end portal. To reach the stronghold you have to keep digging down a well in one of the villages until you eventually hit some bricks signyfying an actual struchture and then its a matter of digging around that level until the stronghold is revealed. The other village contains a blacksmith that enables you to get some useful Items.