Suggestion: If player reaches the left edge of the world, new world is created and player is warped to the right edge of the new world (same for right edge). That should be a very simple but yet very effective way to increase world size and diversity. So there is a "mother" world, which was generated by player, and it stores all the "child" worlds outgoing from it. - "Child" worlds can be fully featured worlds, but you can't choose them from "Choose world". - More variety to those "child" worlds - some with very high mountains, some completely covered by desert, some - by ocean. They can be fully featured, but they also can be without some features. It would not alter gameplay as far as every world contains crimson/corruption, but it would add a lot of depth and variety for building. Maybe "child" worlds should be small-size. - Add warper that should be placed near the edge, and it can warp you to any other warper placed near the edge of other world. Plans for the future: Add "space" world, which you can enter by going to the top of your world. Maybe small planets, asteroids, moons, etc. Add "underhell" world, which you can enter by going to the bottom of your world. Like a "hell" dimension in minecraft. World loading is very fast even with a lot of mods, traveling should be a cool feature which goes greatly with vanilla terraria. Also a great feature for modding, because they can create new "dimensions" and store their world files in "mother" world file.