In case you want to play without any bots or infected:
-Type "map Under1" into your console
-Type "sv_cheats 1"
-And lastly, type "director_stop" and "nb_delete_all"

Honestly, it is genuinely impressive just how much this map breaks the bots. It's almost like the creator specifically messed with the bots' pathing and just everything else because they are very clearly dumbed down in this map. I cannot recall any other map that genuinely messes with the survivor bots' AI like this one.

Bascially, this map is only decent with last man on earth mutation. Exclusively that, any other mode and the experience is actual dogshit.

I also agree with Joe a lot. Thanks Joe!

Here is my review: The map's visuals are awesome! I like the map's design. I have seen only like 1 common infected trough my run. I saw only special infected spawn. The bots, always got stuck in the same space and weren't able to help me when I get grabbed by a smoker or a hunter. The bots also always fell down. Like always. Rochelle always died because of fall damage and haven't made it to the safe house even ONCE. Honestly, everything you do in this map, is walk. There is no point. 4.5/10 visuals are great but everything else is meh.

very visually appealing i love this map

@Tsumugi That sounds epic, gonna play this rn

I feel obligated to mention that this map crashed my PC so badly that it forced my graphics card to reset everything to default due to a system failure.

一路前往地心的地图，很有创意，就是给多一些指路标识就更好了。
The map leading all the way to the Earth's core is very creative. It would be even better with more directional signs.

dogshit

46min 4/5

BIG FAT FAIL FOR SINGLE PLAYER! BOTS FALL OFF EVERYTHING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This map forced me to write my first review. As much as it was pretty, the fact that I had to play this campaign 1 part at a time since the elevators broke twice on 2 different parts (I guess you must be the only thing on the elevator as it goes down) was very immersion breaking. The most horrible part of the map was the broken bot pathing so unless you like playing solo or with a friend (good luck finding a server), this map might not be for you. After I got the "item" in the final section, my game crashed after I entered the "new environment". As much as I wanted to like it, I just didn't have a good time. It was beautiful though. As long as you don't play with bots, you'll be fine. 2/5

concept is cool but with bots is a nightmare, they often get stuck

2b中的2b图

This map crashes when you have to many addons (specifically custom maps), is it possible to fix?

nice map i liked it a lot

I can see how NaissanceE is a huge influence

more of these pitfall walking simulator maps please! can't get enough of this.

super cool map- no more of an art piece than a map. ppl call this "boring" bc it's quite literally a self-proclaimed "walking simulator" / exploration game.

Appreciate the review! Glad you enjoyed, despite it's shortcomings

honestly this will be the only time i comment on any workshop map but this was a genuinely well made map and i see it wear it's inspirations on it's sleeves, i like the little story that's in it following in someone's footsteps to see where they went and the ending showing there isn't a way out as implied with the dead guy in the lighthouse. The Atmosphere of this map is well done and very little people can actually do good atmosphere for megastructures. I do feel like this map would've been more suited towards being on portal 2 or gmod's workshop as it probably would've gotten more praise and critique than being in l4d2's workshop or engine (the elevator transitions are cool but l4d2 really really doesn't like it). all in all really good map and i don't say it lightly either, you pushed hammer to it's limits and got a good map out of it, i would like to see what else you make in the future.

It's meaningless

Does your mother have no money to buy you a gun? You don’t even give me a tank, do you look down on me = =? wtf

This map is broken the dipshit could have had a normal safe house transition, but made this dog water elevator that doesn't fucking work. So don't waste your time if you like playing functional campaigns.

SUBSCRIBERS BEWARE: THIS ISN'T MEANT TO BE A NORMAL CAMPAIGN.

I highly recommend that you run a mutator that gives you an unfair advantage like the infinite ammo machine gun or turn off enemies entirely, because I made the mistake of thinking that you can run it like a normal campaign. And I had a horrible time with that.

There are so punishingly few supplies. The only weapon you have at your disposal is the 9mm pistol, and no, your team mates don't drop another for you to atleast dual wield. Plus, the AI Teammates have a bad navmesh to work with, so expect them to fall off the climbable ladders and ropes alot and die as a result.

Although I wish this was more like a regular campaign, please spare yourselves the misery and use console commands to load this campaign manually and turn off the director too. It'll be alot more enjoyable that way.

很不错的一张图，最后一关的场景非常对味，让我想起了控制和scp里描述的怪诞离奇的场景
very nice map love from china

so fucking noob map

the safe rooms where you lower down will bug if they start lowering and everyone is not in, it will skip the next level load trigger and you have to manual load next level from lobby

boring map, most of the time are running in empty map from begin to the end, don't waste your time on this

the elevator at the end of map 2 (or platform) is still bugged. There won't be transitions even when the missing player is dead.

맵은크고 재밌는데 좀비스폰이 안돼서 지루한감이있음

거대한 구조물 좋아

什么坑图
开局必死三个，小屋底下那个破迷宫搞得团团转

i love this campaign, the style and the design of it brings me good memories of other games that i used to play, awesome job!

And the 3rd one: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2970704446

I got bored so I ported the 2nd map to GMod!
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2969469576

Thanks, that's very high praise! Glad you enjoyed it. If you like the style check out Naissancee, the mange "Blame!" and HR Giger's "Schacht" drawings

Thought about it a little more and its not just one of the best left 4 dead 2 maps it is THE best left 4 dead 2 map.

Probably the most atmospheric campaign I've ever played. This map is amazing. Its really nice to see maps that are unique and aren't just zombie shooting gallerys from start to finish. Easily one of the best left 4 dead 2 maps ever created.

진짜 오랜만에 처음부터 끝까지 꿀잼이었음

where the fuck are the items??

Excellent campaign! And the music is perfect.

Yes, the creator has made it clear in the description that this is a short exploration focused campaign, and not a normal campaign map. Maybe it's a niche map, and I think it would be fun to play with other special modes. If you enjoy killing zombies, do not subscribe.

I am going to give it a 4/10 due to the lack of story behind the map, plain design and the ending was short but confusing. bots being a pain in the ass. What's good about this map is it's big, cool introduction and the ending. I know it was short and confusing, but it's different from defending or escaping. It may be an old map but if you comes back and fix the map + add a story in the map, I can boost my rankings.

is there some hidden lore behind this map

this would work better if it was for garry's mod instead of L4D2

GO MAKE MAPS not for LEFT 4 DEAD, RUBBISH MAP PLATFORMER MAP SHIT

Very enjoyable. Good job.

more map please

This isn't hinted at all in the levels but the backstory I imagined was that whoever lived there was somehow "called" by something at the bottom of the facility. They may have even built the house there because of it. So they dug down until they reached the uppermost levels of the facility then traveled downwards through it to the bottom.