Imagine a old point-and-click game, now add equipment, stats and skills and you've basically got Heroine's Quest. It's hard not to recommend since it's FREE.
EDIT 2: Just finished the game. Took me 28 hours! And I didn't do everything I could since my score was only 455 out of 500.
EDIT: I've played some more so I can give a bit more indepth comments. I'm going to talk mostly about the RPG aspects since the adventure (ie: point & click) genre is pretty well known. Just think of Monkey Island or any other adventure game and add this:
There are 3 classes you can choose: Warrior, Sorceress and Rogue. Each class starts with different stats (Strength, agility e.t.c.) but also different starting skills such as Sorceress starts with Herbalism and Rogue with Sneaking. By spending 25 skill points (you start with 50) you can learn a new skill at the beginning of the game or you can increase your stats. So the warrior class can start with the magic skill which enables her to cast spells. As far as I know you can only get new skills when you start the game so if you don't know herbalism when you've started you will never know it. Which adds replayability.
Speaking of replayability. Different classes have different solutions to puzzles and side-quests. So while a Sorceress can save someone that is freezing to death in the middle of the forest by casting Flame aura on him a warrior or rogue have to find some other way to save him. I also believe you cannot do everything (side-quests, areas, puzzles) with just 1 playthrough. But each class can get a maximum of 500 points, you know those you get by solving puzzles in adventure games. Nothing to do with leveling up stats. So every class can do equally much although different things.
The leveling up mechanics work similar to Morrowind and similar games. By using a skill or attribute you have a chance of increasing it. So if you're carrying a lot or using a melee weapon in combat you have a high chance of increasing your strength.
The combat in the game is quite unique. You use the qweaf keys to attack, I am a Sorceress which means w = staff attack, e = Magic Missile, d = Flame Aura. zxc is used for dodging, z = dodge left, x = duck (uses a lot of stamina), c = dodge right. 1234 keys is used for special attacks but I don't currently have any.
The actual combat is real time and while you can't move around you have to know when to dodge and when to attack. Different enemies have different attacks obviously and they can dodge your attacks as well. While you can find a couple of silver coins or mead on a bandit don't expect them on a varg (basically a evil wolf). But if you know Animal Ken (I think) and have daggers you can skin them.
Unlike other RPGs / adventure games you can freeze to death, starve e.t.c. in this game. Yes, you actually have to eat and sleep! Depending on what skills you know how you get your food will be different. Don't expect to succeed at fishing if you don't know Animal Ken, likewise don't expect to find edible roots if you don't know herbalism.
The game also has a day / night cycle which affects where characters are, if a shop is open or not, enemies, for instance trolls get turned to stone by sunlight so if you want to find one then wait until nightfall.
Finally this is a truly free to play game. There is no microtransactions of any kind. So if this sounds like a game you would enjoy there is no reasons not to try it.