https://www.youtube.com/watch?v=byGyFS9esmk
No More Room in Hell is a fantastic co-op survival-horror FPS. It nails almost every aspect that makes a zombie game terrifying (lots of gore, difficult to kill enemies, relatively frail characters, scarce weapons and ammo, claustrophobia, reanimation, etc.). It's quite impressive how the developers were able to create such a great game, out of the relatively old Source Engine, with very minor financing.

I will now list the pros and cons of the game:


• Spectacular atmosphere, where horrible sights are abundant.
• Great objective-based maps that alternate between different sets of objectives to complete in order to finish a level.
• Very good soundtrack, mixing tension and desolation with its electronic vibe.
• Satisfying combat feel and mechanics
• Simple and functional co-op: the more players there are, the easier it gets to complete the objectives, and zombies don't focus on only one player. Also, helping other people to get past a horde, healing them, preventing them from becoming a walking corpse, feels great, as well as when they help you in return.
• Compared to something like L4D2, zombies here are very dangerous and hard to kill unless you know how to move around them, increasing the skill ceiling and adding variety to the gameplay by rewarding players for dodging hordes. They are pretty numerous and they never stop coming in Objective mode, increasing the tension.
• The inclusion of zombie children is nice, because it helps with immersion and realism, as well as freaking the player out.
• Scarcity of weapons and ammo keep the tensions high, especially when there are 8 players in the server.
• Both firearms and melee weapons are very satisfying to use and pack a punch.
• The minimalist HUD is excellent and surprisingly comfortable to use.
• Bleeding and infection are some interesting game mechanics that up the difficulty and realism
• Nightmare difficulty is brutal and unforgiving. A paradise for adrenaline junkies.
• Some of the achievements are really fun to unlock and can prove a real challenge, like "We Got This!" or the speedrun achievements.
• Even after completing all objective maps several times and learning all the tricks, it's still a thrill to complete most of them. As an alternative challenge, you can try finishing every objective map on your own, which feels like a fantastic accomplishment (for example, "nmo_brooklyn").
• An abundance of free, fan-made maps can keep you entertained for a long time, because many of them are really hard (namely, underground, subside, sweden, urbanhazard, anxiety, ghostbuster, ravenholm, emergency, house of forester, camilla, and many more).
• If you set yourself to learn and complete all these hard maps, you'll find that the game has a huge skill ceiling with how complex the movement and combat mechanics are.
• The game is still being maintained by the devs via occasional bug fixing updates. Workshop support was added thanks to this.
• It's free to play, as if everything before that wasn't enough for you to try it out.


• It's still a mod, so some clunkyness, bugs and glitches will be present at all times, breaking some of the immersion.
• Although satisfying, the combat is finicky and requires some serious practice and experience to fully master.
• Hit detection is generally bad. Shoving, melee hits and shots don't register consistently.
• Runners, the biggest source of danger in the game, are very exploitable. Tthey lack attack animations when running, meaning that you can basically kite them all on your back while walking.
• Random chance of infection can be incredibly frustrating, especially when you get infected after your first bite just starting a really long map, like nmo_anxiety. The chance increases the lower your health is, but I've had many instances where I got infected on full health, first bite, and others where I could finish hard maps like nmo_underground having been bitten many times on low health, and showing no signs of infection.
• Objective maps can be broken with ease. Just throw a vital item over a fence and you're done, no more progress. This has been been mitigated on official maps fortunately.
• Survival maps tend to be somewhat boring, not to mention how easy they are to beat with 5-ish players. However, there is no player scaling, so completing them solo can be a considerable challenge.
• The tutorial is limited to an image of the main keyboard controls during loading screens, which isn't the best way to teach players. It all ends up being a trial and error type of learning curve. No info on game mechanics unless you look at the MOTD when creating your own server.
• Zombie models lack variety, breaking the realism and immersion to some degree. It's disappointing when you encounter the same old man zombie for the tenth time on a single map. Also, there are only two skins available for zombie children.
• Third person character animations are a bit wonky. Walk, run and melee attack cycles are stiff.


To sum it all up, I definitely recommend NMRiH wholeheartedly. If you like zombie/co-op/FPS games, this is one of the best I've seen, and it's really impressive for a HL2 mod. Even if you're not particularly excited about zombies but you're into horror games, you will love this one. If you can look past all the bugs, which are not as noticeable as they may seem, then you're in for a treat.