Doctor Who: The Eternity clock stars, obviously, the Doctor and River Song from the 2010 Series of Doctor Who starring Matt Smith as the Doctor. He starts out after an anomaly in time stuck inside a Bank and must find his way out. Alternatively - the character River Song, starts out on a Prison as she has to make her way across the prison, get her stuff back and meet up with the Doctor in the timeline he's stuck on. It's a very 'Doctor Who' premise, which I really enjoyed.
One thing that must be noted, however - YOU WILL MOST LIKELY NOT ENJOY THE GAME AS MUCH IF YOU ARE NOT A FAN OF THE SERIES. This may seem obvious, but in all honesty - unlike games like TellTale's The Walking Dead series, you don't need to be a fan of the series /original source content to understand what's going on as it's pretty self absorbed as a story - this game is not. The game very largely depends on you having seen the show and understand who the Doctor and River Song are and why they do what they do - otherwise clever references made in nod to the show (which are a lot of them) will whizz right by you and you'll most likely end up feeling like you're missing something crucial. There is no "self absorbed" Character Development with either the Doctor or River, it is literally like an episode of the show.
The visuals are pretty serviceable. The Doctor and River, and of course the TARDIS are really well textured and done, but I feel the rest of the game was lacking that touch of polish. Some areas look very muddy, while some look like they weren't textured at all. Some NPC models had about the same issue - notably the Cybermen models - whom looked like a pretty standard mesh without textures and 'plastic-y'. The sound, however is masterful. Everything sounds like it has given special attention to care, even the voices to an extent. There's a lot to love if you're already a fan of the music found in the show like this theme
which plays quite a few times during the game as well as the Title Screen having the full version of the 2010 show's theme.
The game play is very simple. The game is set to be a puzzle-platformer, a pretty standard one, but it works for what it tries to achieve. The puzzles aren't particularly tough to figure out, but some "mini game" sequences (like to activate consoles, open doors or work computers to unlock passageways, etc) are amazingly tedious at times - given the fact that they overuse them a lot.
*~> One has you redirecting "energy" lines to their sources, without them 'overlaying' so they "overcharge" the source, you do this by opening and closing lines/pipes. Usually these are done in multiple stages, they being timed - so if you run out of time and the puzzle is not complete - it will reset itself.
*~> Another one involves you opening and closing "gates" as blue and red energy flows down some lines - you need to open the gates for the blue source to pass and close gates to dissipate red sources - ultimate they culminate in a bar that you must fill up with blue source energy. This puzzle is, by far, the most aggravating nonsense I have ever played. On harder difficulties - the red sources come out so fast at times they they can confuse you as to which line they are coming through so you end up unblocking a wrong gate, or a blue source comes down so fast you don't have enough time to unblock it's gate, and if a red source hits, the screen shakes a lot allowing for some confusion as more sources keep trickling down - by far my LEAST favourite of the minigames - but these are NOT done in stages, however these are used a lot more towards the end of the game.
*~> Another mini game has you moving a small dot across a field of red dots that will "kill" your dot and force you to restart the field again - the field is usually divided in 3 sections, the outer side having the most space and most time to move your dot, a safe zone on between, a smaller zone beneath it, and then towards the center - you have less margins for error. Think of this minigame like "Frogger" in a sense. This one was, by far, the one I enjoyed the most. While it was being used a lot towards the end of game as well - this one never got too overwhelming or overly tedious that it crippled my enjoyment of the game.
There is an additional mini puzzle that comes in the way of matching waves in size, lenght and pattern, which involves the Sonic Screwdriver. You'll be doing this one a lot as well, as it is used for unlocking doors and occasionally defeating enemies.
On the "Platformer" side of things - there's not much to say. The Doctor and River handle fairly well. There's a bit of a stiffness to movement though, and it'll show more if you have to do a neutral jump (jumping without direction) because it's hard to get to ledges that aren't too far off you, but aren't close enough for you to grip on to them. Other than that, sometimes you move some crates and such to get to higher places - it's all very standard stuff here, but it works. River herself has a few different tools, like her gun, which you use the Right Stick on a controller to aim and RT to shoot - or use the mouse to hover and click to shoot - which you'll be using in a few segments during the game. I also have to give a special mention to the AI in the game... it is pretty horrendous. I had issues where River got stuck not jumping somewhere or not following (she is needed at times for dual puzzles) and the enemies break immersion a lot since as SOON as you're out of sight - they can still latch on to you (look at you) but won't chase you and give up and leave.
As far as replay value goes - unless you're already a Doctor Who fan, or are a completionist, there's not much incentive to replay the game. Sure, it has 3 stages of difficulty to beat the game through at, and a fair amount of item collectibles - such as the Doctor's many hats (as seen on the show) or River's diary pages (Spoilers!) but the tedious puzzles found in between may very well turn you off trying to beat the game again if it didn't already turn you off beating the game in the first place.
All in all though, I am a bit biased going into this review as I do love the show a lot, so obviously I got more into the notion of the game - however if you're not a fan of the show - AT ALL - or a fan of very standard, bare bones puzzle platformers I would honestly say "Skip this one."
+Amazing Sound Design
+Very true to Source Material (References & Nods, Art style)
+Story is pretty cool
+Some puzzles can be fun
-Poor stealth mechanics
-Puzzles can get tedious and awfully random
-No replay value