MAROC Path of Exile player, VHPG is the best poe currency for you.
There is no free and legal website offering Poe currency - just forget about it. You can get money by farming low / intermediate level maps, and use something like frost blade Raider / spark Templar, which is the fastest way in exile, or you can form a group with friends, learn how to grind properly, and then go to shaper/ Atziri is in the first few days of the new league - their unique trophy is worth a lot of premium orbs , equivalent to hundreds of dollars in the first few days of the new patch / League. If that's not entirely for you, because you're just a casual player, you may want to buy exile orbs - they'll never be free, but if you use a market like VHPG , they'll at least be very cheap:)
The dervi expansion of the exodus has been launched, adding a long abandoned bronze mine, an infinite dungeon with twists.
As long as you keep the light from the reptiles, a vehicle will accompany your cave and draw a path in the branch tunnel, you can, but when you get out of the light, you will start to suffer serious damage and risk being ambushed by the enemy. The truth is that the best prize is to tease you with a faint flash in the dark, so you will constantly balance risk and reward.
Delve is a temporary challenge alliance, which means you'll start with a whole new role, with months of exploration before the next expansion release. It's built into the core game, and to power crawler, you have to find the texture of the voltaic help in the main story. Take time to train quickly, or increase tribal load for longer dungeons.
The crawler will speed up or slow down according to your pace, so you don't have to worry about it going forward rapidly. Once you reach the end of this part of the map, you will have a boss fight, and then your path will be lit. Then, you can run safely back and forth along it, and if you find something particularly shiny, you can go into the dark.
You can upgrade crawler in the process, and encounter different communities, each of which will provide specific spoils. You'll use new pluggable currencies and crafts and try new skills. Essentially, there are many reasons to play with it, and you can read all of this in Steven's Extended Preview. And, like the rest of the game, it's completely free.