Zombeer, a zombie first person shooter game with a neat side-concept (beer), considering it was released on Steam in January 2015, aged. Not well, not bad.
Just the perfectly balanced level of ageing.
That "perfectly balanced level" is a theme following you throughout the game in the sense of you having to keep a balanced level of alcohol flow within your body.
So, besides of bleeding out, your options to die are too much ("Drunk") or not enough ("Zombified") alcohol in your veins; you can balance this with drinking Zombeer (hence the name of the game).

Visibly, the game holds up with more recent Unity-Engine made games.
The game mechanics are integrated kind of well, with stairs being an enemy of your speed; the aiming system feels broken - you do get a crosshair and the option to aim down sights, but it just feels that the bullets are not connecting. If they do, it can feel rewarding to hear the protagonist scream "Headshot!".
However, it can get annoying real quick.
Overall, the controls seem sluggish. Movement yes, running yes (running is recommended at all times!). Big minus points for not being able to change the controls via the menu.
The audio seems well enough. I had the feeling that sometimes the audio just went crazy on certain music tracks, and that sometimes the bitrate of the audio tracks in general were low and not nice to listen to.
The whole concept of being perfectly drunk the whole time, with over- or underdosing being a whole state for you to manage, as well as the whole highschool zombie stuff in cartoonish style is just great. I really loved it.
The puzzles in this game are fun to find out. Not too hard, but nearly too easy.
The collectables are just to get the player to spend more time on the game.
Script-wise, it's alright. Sometimes there are references, some good jokes, sometimes dad-jokes and some light chuckle moments. The story is... well. It has a story to a certain point.

I wished, I really wished that the developers would have continued on this game, other than leaving it in the state as it is right now. A little bugfixing considering the movement and the aiming system, as well as changing some audio files for quality reasons, and the game would be fine.
A playthrough is done fairly quick, even with the devs audio tracks (collectable in game!) telling you at some point that the money ran out (under the circumstances of the Spanish financial crisis, also told in a dev audio track) and if the game sells well, they would continue the series.
Because of this, the ending is open. It has been open for 10 years now. Sadly.
I know that this isn't a triple-A game, and expectations should be low. But man, I didn't expect that "ending".
I will definitely replay this game once in a while, even though it is missing the end or a (worthy) successor.


Get this game when it's cheap (like in the Steam Summer Sale).
Buying a game that wasn't finished or is missing the follow-up for the actual storyline for the whole price isn't worth it.
Still, I recommend.