The first game "Demon's Souls" is brutal! It certainly not a lesser game but more a rough diamond with
raw game mechanics. You will need way more patience to play the first game than the second.
Key differences of first game:
* No checkpoints, no bonfires, if you die then the whole level resets and you are back to the beginning of the level.
* Levels are self contained, no streaming, you teleport to each level.
* When you die your health is halved. You need to use
Stone of Ephemeral Eyes (These are rare items) to gain human form.
* Each world has a
Tendency scale of white (easy) to black (crazy hard) and plenty of levels of grey in between. When you die this meter goes towards black, so the world gets tougher. Certain events only happen at white or black levels.
Summary: When you die the game gets harder!
* If you attack ANY NPC in the game they are hostile until next game+. There is no way to reset them to be friendly.
* There is a one NPC that has some really cool items and if he dies early it can affect how you upgrade certain weapons.
* It is extremely easy to screw up a whole game and have to rely on game+ to reset events.
* The levels can be occupied with dark shades and they are extremely dangerous and tough.
* Most boss fights in the first game are tough and unforgiving. Plus you often have to fight through a whole level to get to them without dying first. (example - Tower Knight)
If you play the second game first you will dislike the first game because it is tougher and more challenging. I found Dark Souls easier (especially up to Sen's Fortress) but I poured 200+ hours into the first game and think the second game was toned down. (especially after all the patches)
The
Online WIKI is a must read for the first game especially if you want to upgrade items.