I recently decided to try the 10 day trial of Fallen Earth. I had been in the beta, and was unimpressed. In fact, there wasn’t much change to my impressions. Though I did appreciate the GM’s being on constantly to help answer questions or moderate the chat.
To level the fastest in Fallen Earth, I found that doing quests is not fast. Part of the reason it’s not fast, is that the game world is so large, and running, even on horseback, takes a while to get to and from each quest area. The fastest way to level, is in fact to simply find a good spot with fast respawns, and to grind level. I found that melee fighters are the best, as they don’t have to worry about running out of ammo and crafting.
I do recommend having First Aid, and making bandages. Fight humanoids and zombies for their cloth drops, and while fighting, have a continuous supply of bandages being made. In a lull you can complete the bandages.
The best spots that I personally found were inside the nearby mines/dungeons.
Tip: You should always do the starter quests for new alts, to get your free mount.