It might be fun to play for some people, but it wasn't for me.
Lichdom: Battlemage is basically a first person shooter with magic. The advertising goes like "be a mage with unlimited power, no cooldowns or anything". Having unlimited power, the "mage" feels fairly limited. Not only does your magic often enough feel incredibly weak and slow, the entirely unnecessary base damage/health value increase over the course of the game makes fighting a lot more annoying than it is fun.
The game starts off being rather easy. Enemies in the first two regions of the game (Drivasser City and the caves underneath) are pretty easy to defeat. However, during the course of the third region the player is introduced to (the snowy Greyteeth Mountains) difficulty tends to spike and reach a level where combat becomes a tedious chore and no fun at all anymore. Increasingly large groups of enemies dotted with more and more "miniboss" or "empowered mob" kind of foes start applying a headache inducing number of rapidfire CC effects on the player, which are terribly hard- to often impossible to dodge or deflect. For example, there will be a low powered ranged-attack mob shooting arrows that freeze the player. While damage to the player will break the ice, those mobs shoot these arrows in rather rapid succession, freezing you on every hit. This combined with CC effects of other enemies that usually spawn in tow of these can lead to the player being frozen, stunned, slowed or otherwise impaired litterally for minutes before there is even a slight chance to break such a chain, given that the player survives it at all.
That said, the players very few own useful CCs are usually frail, weak, slow to deploy and outright unrelieable. For example freezing: You can usually freeze most enemies with a simple Ice-beam spell or an ice shot, which usually works on trashmobs with no to little special effects. However, enemies which you would actually NEED to be frozen are either not affected, or the effect works only for maybe a half to two seconds, which doesn't really give you time for a worthy followup. That said, all enemies (especially bosses, minibosses and empowered mobs) seem completely randomly immune to CC effects like freezing or being held in place by a kinetic spell, which, as mentioned before, makes these spells utterly unrelieable. The fact that enemies tend to spawn around and right next to you, doesn't really help you keep control or fight systematically. I know that some level of chaos and surprise attacks by newly spawning enemies is an integral part of the fun in these games, but there is a fine line between it being fun or just utterly annoying.
Combine all that with a completely unnecessarily complex and unrewarding spell crafting system (granted, the smart inventory crafting system helps a little but it has it's limits), unnecessary difficulty spikes through utterly over-powerful enemy types being introduced, and a completely off-putting story and storytelling.
Story... I have yet to experience something of the sort in this game. Basically it goes: The Cult of Malthus is your enemy because it's evil. Go and murder as many as you can and kill their bosses. Oh and they have undead. Enjoy.
That not being enough, the "mage" (player character) called "Dragon" in this game, isn't actually a mage, but some random person the Cult has done wrong by, which is handed a pair of magic bracers that allow throwing spells, make you unkillable (if you die you get revived by waypoints without loadscreens and regular dying is actually part of the lore), and give you shields. The player character has actually no frickin idea how his/her magic works and is magic-wise generally a dumb n00b.
Personal note: I don't feel like playing a "mage" when the "mage" is just some random idiot with enchanted weapons and hasn't worked for their magic power by study or training AT ALL.
Anyway, now for the positive aspects of the game:
Amazingly beautiful environments. Seriously, the game world might lack some of the fidelity and dynamic effects of for example Crysis (this is a Cry-Engine 3 game after all), but still it is extremely beautifully crafted. Surroundings look entirely awesome, that much must be said. Characters, enemies and most special effects like spells or fire also look very nice (ice/freezing being the possible exception), but a game is not just about looks.
Sadly however, for all it's good looks, there's very little one can do in the environment. Shoot a few glowing plants or ice crystals here and there, and find a book or a scroll for some journalbound lore now and then, but that's largely it.
The soundtrack is decent, yet largely unremarkable.
The most positive aspect of the game for me is that, however in a game like this most people would maybe consider it unnecessary, the player get's to choose if the protagonist should be male or female, while the game is actually completely voice acted for both player genders. It might be a minor detail for some, but I find it very nice and would wish for more games to include that option.
Very bad and annoying combat gameplay, unnecessary damage/healthrange increases, needlessly complex crafting system (with the recent addition of an automated crafting system which is alright), really really beautiful graphics, not mentionworthy story that doesn't really make too much sense, player choice of gender.
I cannot really recommend the game, but if you like first person shooters with a "challenging" gameplay in a fantasy setting with little in the way of a compelling tale and you don't mind retrying a lot, sure, go ahead.