It has no story or scripted sequences but most mods are like that
You get a vague notion of being a janitor from the text file, and a texture pack you can get reinforces that, but its just a novelty.
It has no secret places but once again most mods are like that, in fact Half-Life mostly didn’t have much of that unfortunately.

I can’t say there was anything spectacular about it but sort of enjoyable on a higher difficulty.
It also has a sort of anti-climatic ending where you reach the surface (again?) but this time ambushed and die by, well an amount of grunts you’ve easily taken on in the passed and are fully equipped to deal with

The combat is on the easy side and I would suggest playing on hard level, although that’s not going to generate much in the way of a challenge either, these Grunts just die without too much effort.

I think that this is one of those mods that has not stand the test of time, when first released I highly rated Case Closed, but now think it very average without any WOW facture and being very tame devoid of any memorable moments.

Everything is very detailed, there will be an elevator ride, similar to the train ride at the start of the original Half-Life.

For the first half of the mod, the progression is quite monotonous – grey rooms, surface, sewers, grey rooms, caves, surface… There are walls breaking, destroyed railway, rivers, but it’s still boring. There’s no story development – we just go forward, fighting back monsters and soldiers.

In the second half, there’s less monotonousness. There will be interesting events where we turn on various equipment.

Conclusion – it looks like an expansion pack at first, but if the first level make you think that this is it, you’ll be disappointed. This mod is just an action. There are less interesting events than I’d like to be. The architecture is very detailed and impressive, but it’s not Black Mesa, and not Xen. The nonsensical ending adds evidence to that. Is this mod worth playing? If you like pure action, it is, just don’t expect an expansion pack.

Some old mods in the 100 that I’ve played in the past, I can remember bits of them, but with case closed it was like having a walk through in my head. The thing that struck me at the beginning was the scientists have their lab coats, Barney’s have their blue uniform but a lowly janitor gets an HEV suit!

OK the game starts slowly and builds up, the action is just right for fun play although its probably isn’t much fun for those who like hardcore action. It has a look of BM about it but nothing special and flows along quite nicely (for me anyway), the only part that I didn’t enjoy was the platform jumping in the disjointed BM part of the Xen world.

The ending was a bit weak, if they had let Bob live he could have teamed up with Doris from BM staff canteen in HL2, what a team the would have made.

I think this is another example where some judicious editing would have really focused the experience into a nice, tight package of fun. As it stands now it’s a little too long and there are some dull parts (although not really repetitive, thankfully). There are a couple of ‘cool’ (but not quite WOW) moments near the end that are definitely worth seeing. But leading up to those points, I think Case Closed is a little standard. That is, it very much follows the progression of Half-Life in terms of enemies, difficulty, settings, etc. There are a couple decent puzzles mixed in but I can understand people getting a little bored.

There isn’t too much challenge since you get some serious firepower early on (like the crossbow, and a LOT of contact grenades), so I suggest perhaps playing on a difficulty level higher than your normal to really get the most out of this mod. I was excited and scared by the Garg near the end, but disappointed to find that you don’t even fight him. In fact, the ending was terribly anticlimactic.

This is a quality pack but not a must-play.

This is only the third mod in the 100SDoN that I have actually played before, and like Zhouy and Abandoned Workshops said, you can also play it in Sven Co-op although I myself have never tried it from start to finish.

While it is repetitive in parts, and there is a fair amount of ARnade spamming, I thought it was really enjoyable. The difficulty wasn’t that hard although it was tough in areas. You know that you’ve put a well thought out fight when your players can bounce satchels off of boxes suspended from the ceiling. The difficulty got really easy towards the end however most of the fights required you to think as well as shoot. The whole upside down area was nicely done, and we need more mods with strange areas such as that.

It was very enjoyable, and is a must play.

One of my main issues with the map pack is that it’s incredible linear; you’re never issued with a choice in terms of exploring except for some areas that are all too sparsely placed making it an overall very boring and unexciting adventure.
Another issue that I had was that it was too easy even on normal difficulty. There are way too much stations and health packs/batteries scattered about all around the facility. Never ever was I in a stressful situation and never was it any fun. Towards the middle you get an unhealthy supply of AR2 grenades from fallen human grunts making the battles against them unfairly easy mostly because they are so conveniently stacked up when you run into a group.
Apart from these grunts you also run into Xen aliens that mostly consists of headcrabs and alien slaves. After about a third into the pack you duke it out with alien grunts but they don’t put up much of a threat.

Overall, I think it went on too long for its own good. You progress through maintenance areas and sewers for a good amount of time in the beginning to the middle, which isn’t all that too exciting, while making a few trips outside the facility until you gain access to some sort of research facility that looks much like Lambda Core. All this looks great with nicely detailed corridors and rooms together with good lighting and ambient sounds and a few impressive architectural areas easily on par with Valve’s own design. Problem is there’s nothing going on, you go from point A to point B fighting off a few grunts and aliens but there are no memorable parts or set-pieces except for that one area in which you’re traveling upside-down, which I thought was genius nonetheless.
But to sum it up, I think it would’ve been better if it was shortened down in length; just because you make a lot of maps for a mod or map pack doesn’t necessarily mean that it’s going to be great, less so when the author’s obviously spent more time detailing the maps instead of focusing on scripted set-pieces and a story, which by the way was completely absent.

Towards the end you’ll think for yourself if it was all worth it due to the horribly disappointing ending. But if you’re not after exciting gameplay or a good and consistent story then it’s probably worth checking out.

On the other hand I felt that too much attention had been paid to the small details and not enough to the overall effect. I never felt any changes in emotions, it was almost as if I were playing a very linear mod, not in the sense of “no choices”, but in the sense of excitement.

I would find myself entering large areas and hoping for a fantastic battle and getting a battle – all the way through. There were no highs and lows – just one arousal level.

As with so many of the longer mods I have added to the 100SDoN event, I would have cut this down by a third. Made some of the areas bigger battles and definitely removed some of the corridors.

The ending was disappointing, not because it was happy, but because I feel all mods should end with a great battle.

Let’s not forget this is nearly ten years old and for its time it was a really good release. But now we have seen and played much more, I would say this lacks the WOW factor.

I can even see why some players would find this mod boring. I still recommend you play it, but don’t expect too many thrills.

Walkthrough and homepage both are 404. Can anyone point me to the new locations?

The home page works for me, although the Case Closed section is giving a PHL “page not found”.

What walkthrough are you referring to?

If you are stuck or looking for some specific information, why not ask here?