Outline of Doom 2's changed maps across versions 

Papa decino told me this was a cool video. He wasn't wrong!

That one extra zombieman was way to op. Thank god they removed him

When I was a kid, I was scared of map 05 for a couple reasons. One was the spooky soundtrack and another was the impaled twitching guy in the room with the chaingunners and caged zombie men. But the is video just unearthed a long buried memory: the other reason I was scared of this map was because I fell down into the dark and got stuck in that room when the door closes behind you. My tiny toddler brain couldn’t figure out that the panels on the walls were doors, so I think I just ran away crying lmao.

Loved the gag about the circle of death o of destruction

The missing Underhalls bars have been bugging me for years. I was sure there was grey bars there at one point, but this explains it. Thanks!

I always figured the shotgunner in underhalls stuck by the barrel was an intended lesson in explosive barrels and gibbing. But its more of a bug, wow

So THAT was why I always searched for that goddamn backpack that I could swear was there but it wasn't. Actually I just played another version years ago.

My first version of Doom2 was 1.666, specifically the common bootleg version (that DeHackEd initially refuses to load). When a friend send me 1.9, I thought IT was some "unofficial fan made bootleg".. I was blown away to learn the truth years later! Well done on the views, by the way!

Fun fact: GBA Doom 2 uses the original v1.666 maps. I find it odd as it released 7 years after v1.9.

Removing the bars was actually good game design (admittedly very minor) The bars played no role other than to slightly slow you down, and were essentially just a second interactable door that you needed to press to reach the interactable switch which opened another door. Obviously again, this is a pretty minor element. Oh and obviously the map 10 bridge was a great choice

Misaligned/mislabeled textures? Missing or untextured linedefs? As a certain disgruntled chef would say: FUCKING RAW! Really interesting stuff. I'd love to see more like this for version differences, not just for maps but bugs and other cool tidbits, and perhaps not just for Doom 2, but also Doom and Final Doom if applicable.

I actually distinctly remember being stuck on that MAP02 as a kid because it was not obvious the bars were a door. I solved it pretty quickly though, resorting to my Wolf3d strategy of pressing "Open" on every wall.

Shoutout to Decino for helping us discover this gem of a channel

So that's why I remember as a kid a map with low ceilings and dark sectors but I never managed to found it again since then c: Great video! Definitively you won a suscriber!

I knew i wasnt crazy about bars in th underhalls! My memory from the 90s still holds up!

Nightmare difficulty: No problem Extra ZombieMan: Now just hold on a second...

This explains so much. Looks like the original Doom 2 Wad I have is the 1.666 version and why it played differently to the runs I saw others do.

I'm a simple man, I see classic Doom analysis, I click the like button

I spent a shamefully long time finding the backpack alcove on MAP03. I could swear it was there before and I just couldn't find it anymore. I really thought my mind was playing tricks on me, this finally gave me peace

Meanwhile the one change they didn't make was to Sector 147 of Industrial Zone causing a secret to remain that couldn't be tagged unless you forcibly dragged a Pain Elemental over to it I'm also curious why if they added secrets to Wolfenstein, Grosse and Bloodfalls why they didn't do the same for The Inmost Dens, Nirvana and The Living End. And took out the extra computer area map from Monster Condo

You just flashed my memories! Man! Can't wait you to do shareware version and all things that were (and could be) there!

I used to watch my dad playing through v1.666 and noticing the bars in Underhalls, but when I got to experience the game years later I got confused when noticing they weren't there anymore and that was v1.9. Glad my childhood memories kept reminding me of these questionable level designs years later.

Now i realize i played 1.666 some 18 years ago! Good vid!

This video is so satisfying…you’re so talented too man. Watching this while laying down trying to sleep, my edible kicked in, I am transcending.

Even though I was too young to play anything on PC in 94/95, I did somehow stumble on 1.666 originally. That courtyard missing texture is a pretty memorable "oh something is very wrong here" moment.

This must have taken you a bloody long time to do! Thanks - great summary!

The teleporter was added to The Gantlet for DWANGO players because it was one of the most popular maps on DWANGO. Probably the #1 multiplayer map at the time.

You did an outstanding job with this video. I didn't even know about half or more of these changes! It's always fascinating to look back at the original versions of maps, and also wonder what they were like in even _earlier_ versions that we never saw/got to play (although I guess John Romero's file dump in 2015 gave us some of that as well).

Great rundown of the differences - I didn’t realize there were so many! I liked the buildup to that sole zombie man in Industrial Zone :)

Good video. Your commentary is great as well! It's almost soothing and nice.

Most of my formative doom playing was on Doom95 (so 1.9) but I had played a bit of doom ii before that and I very vaguely remembered the bars, and absolutely remembered the waste tunnels barrier - I'm glad my memory served me well there

Thanks for sharing that, I was wondering about some of these things when I played the game 6-7 years after it first came out , but never got to look into them!!

Wow, this is a fantastic video. I have returned to Doom recently, having played it when it originally came out and some of these changes had stumped me. Funny what things you will remember over the years. Thanks!

Wow that's quite fascinating to see the differences between different versions specially to me because the verision I been playing Doom 2 for a long time is the v1.9 version

This is a nice small doom channel, don't stop uploading!

Excellent video! I'd also love to see a similar comparison for Doom/ Ultimate Doom versions. For instance, the version of Doom that I've always played lacks the elevator in E1M8 that lets you go back to the earlier part of the level.

I thought I was going crazy. I've played DOOM since I was a teenager and the other day I watched Decino play through DOOM II and I started getting confused as he found secrets I never noticed. That backpack in that early level and the new bridge in Circle of Destruction. Now it all makes sense. I've had the 1.666 version since I was a kid. It's the WAD I still play on today. Is it worth it to even seek out 1.9? I didn't even know 1.7 and 1.8 existed and only recently discovered there even was a 1.9 but I thought it was only for the Ultimate DOOM release.

Awesome video! Subbed

Amazing video. Extensive research done.

SUBBED! I love these analysis videos! And from a fellow Aussie too 🦘

I'd never find videos like this if not for Decino and that's a shame. Nice work!

Very interesting video and very well done!

Great video! Didnt know about most of these changes, I do remember those bars in map2, I played the original cd-rom release back in 94 :D

Really nice job!

Another essay! Subbed!

3:54 this poor shotgunner been there for as long as I could ever remember. I played Doom on almost every console and this guy is always stuck. poor bastard never had a chance to shoot anyone.

You just got a new subscriber!

Thank you, I used your video to patch up my Doom 2 Wad.

So this is why the bars in underhall dissapeared ! i tought i fucked up my game too much and i was scared of having bugs and other things that wouldn't let me continue trough the game or something, thanks for the explanation !

duuuuuuude i love this. you should do something with the doom port differences and showcase some of the bugs that are present in each of the ports... like the OoB imp in e1m2 or the partially removed room in the 32x room that has a secret that is unobtainable.

very interesting.. i can remember some of the stuff from older versions. didnt have a clue about some changes to1.9 though like the backback in level 3

I thought I was crazy, I remember those bars in map 2. It bothered me so much that I actually modified the wad to add them back (and made several "fixes" to bloodfalls)

The Circle of Death / 'O' of Destruction bit got me to sub instantly, 10/10 priceless

Oh, I remember the transparent linedef in the Courtyard. I was like "Yo, what's up with that?" back then and "Wait I'm pretty sure there was something wrong there" years later.

Omg, those bars made me think I was losing it. I played doom games on Steam recently just for old times sake, and I was so thrown off! Fucking thank you!

I love Doom! And I loved this video! Good job, man.

hold on....you can go back up the waste tunnel lift now?...wow.. when i started playing doom 2 in 94 i started on 1.7, and never really heard of updating your games till later, i didnt update mine to 1.9 till the Zdoom/zdaemon era and thought i was just dumb not noticing that bridge in o of destruction.

Why do I feel so sad for the missing zombie men? They didn’t deserve that :(

Keep doing this kind of video men, i guarantee you will get a lot of subscribers in a very short time, and you will become very popular

Your attention to detail, calm voice, and the lack of loud jarring noises in this video made me subscribe to your channel. I find most RU-vidrs annoying, so thank you for basically being like a Doom ASMR.

Once I remembered how little time id Software had to initially work on this game, the changes (alongside fixed mistakes) listed in this video started to make a lot of sense.

Now I remember all the changes! Bless me I played the first version a long time ago.

can you do the same for DOOM 1? right now the only change I'm aware of is the extra switch to open courtyard on E1M1, but I bet there is more...

Man, I'm so glad I wasn't mis-remembering through the mist of decades. Always suspected there must've been unreported tweaks. Also suspected those details had been lost, like Sandy Petersen fumbling names. Apparently not lost.

7:54 this map always got me. I remember seeing that cyber demon on the map a long time ago in vanilla version. In current versions he's never there and it's weird. I've never payed attention to the versions before this is really interesting, good video.

I honestly thought I had dreamed up those damn bars. There are a bunch of changes in E1M1 of Doom 1 too. I remember there being fewer secrets in 1.4 - 1.666

This channel is gonna be big if you keep up this quality...

A doom analysis video? By a fellow countryman? Subbed. decino sent me here btw.

Cool! This cleared up rhe mandela effects I've experienced.

my memories arent wrong after all, thanks for the video

Interesting! I never finished the original 1.666, but played a few levels of it at a friend's house back in the day, and remember being confused by the missing bars on map02 when I purchased my own copy several years later. I don't think I spotted any of the other differences at the time.

I can't say I have ever experienced these in DOOM, because my first introduction to it was around 2007, at which point all this was already patched. But I can say I have had some major whiplash due to patches altering the game significantly.. Last year I played through a game called "Immortal: Unchained", the PS4 disc was in clearance sale, so I got it for cheap, and Souls-likes are interesting. Well, because I played it from the disc, I got to start the game at v1.0, when rest of it was doing background install and patches were downloading. Once I finished the game few weeks later, I thought that I wanted to replay it with another character build. To my massive surprise, the tutorial stage was entirely different, with only the last boss being the same but seemingly modified/repurposed a bit. And what threw me off particularly, was that I had already revisited the tutorial stage with my first character after patching the game. At that point I had already forgot how the tutorial was supposed to be exactly, and I thought that the game only let the player re-enter a later segment of the tutorial, and not the very first segment, because I definitely couldn't find a lot of stuff that used to be in the tutorial. The item pickups also seemed weird, and the boss seemingly respawned (they shouldn't in Souls like games generally), but I only brushed that up to being some sort of reward for revisiting the tutorial area, or a glitch that respawned everything, because the game did have some bugs. But starting another character sort of clicked everything in place for me, the tutorial was redesigned at some point. The original was much larger, had more optional challenges and was otherwise just more difficult. It felt less like a tutorial area and more like one of those "everything is new, everything is confusing, and I need to figure things out" type of deals, kinda like Bloodborne's first area, as that game doesnt have a dedicated "tutorial" area either. I think the v1.0 tutorial also had two bosses possibly, both of which are later just introduced as tougher mob enemies. The patched tutorial is a lot cleaner, more deliberately designed to introduce the player to the game and mechanics, compact. I think most of the item pickups and drops were the same, though. It was quite weird but also fascinating.

Cheers, great vid!

Hi pal ! I told you once you deserved more suscribers.. i'm glad for you. Btw. decino is a good publicity :)

4:33 I knew about that one; ALSO took me several years to find what causes the sound of opening doors, but I nailed it

I went the other way and must have started playing on a 1.7 or later release back in the early days (got a copy from my cousin who had bought the CD version) and then recently played a different copy that for some reason was running the 1.666 German version. Thought I was going crazy with the bars showing up in the Underhalls, no backpack in the Gantlet and was really confused when the secret teleport to Wolfenstein didn't work. Then I read up about the different versions. Great vid! (And love the keyboard playing. It's the only way I have ever played, even after finding you can use a mouse many years later I still play keyboard only).

Your channel has been blessed by decino!

Gawd I completely forgot about that missing wall texture in courtyard. Really bemused me back in the day.

Cool video!

super educational video, man :) if i may suggest, look into some de-essing plugins for your audio, sometimes the highs can be a bit harsh :)

I play the original (v1.666) version for almost 20 years and never noticed the missing wall in MAP18. Amazing video, I learned a lot!

Wait, those Underhalls doors and lifts open back up in 1.9? I grew up with 1.7 so I never knew they changed that. This radically changes how I play that level.

That map15 zombieman joke earned you another subscriber XD

Yesss! In my childhood Courtyard's transparent wall was most lovely and most confusing thing ever! :D

damn I remember most of these... good video!

version differences, a.k.a. Every Copy Of Doom 2 is Personalized

One of the strangest developer oversights in the level Pharaoh is a missing yellow keycard. It not only made exiting the level impossible but it broke the trigger on many scripts!

My kinda stuff. Subscribed!

i'm 15 just now learning about the absolute insanity that is all the different and slightly tweaked doom versions

I have never noticed the fix on "waste tunnel" and "tenements". I played these maps on 1.666 so much time that these errors were stuck in my mind and never checked them back when playhing now the 1.9v. Thanks for this useful video. =)

this channel is so underrated

Super interesting video

I'd love to see a video like this for DOOM 1.

as soon as i saw the thumbnail showing the underhall bars i knew i wasn't crazy and had to watch

I specifically remember cheesing circle of death by walking around that barrier, I never remember them adding the little side partitions for them. Glad I wasn't the only one!

I have Version 1.666 Of Doom 2. And I was playing the Bethesda build of Doom 2 (Curiosity) and I thought they changed things in the version. I was so confused why I was suddenly noticing changes. It was so weird. I never realized the Bethesda build used version 1.9

Great video. I still remember the maps as they were from 1.666 mostly even though I've probably been playing 1.9 for 25 years... I still can't get over the switch in E1M1 of Doom / Knee deep in the dead either - my brain just says it shouldn't be there...

Once I even found both shotgunners in Underhalls dead for no reason before even entering the room. I think that time I accidentally played on a different complevel and didn't notice.

My father told me of his time playing doom 2 and funnily enough he got stuck on O of destruction because he didn't know you had to make the jump. I had actually picked up on his saved game and finished the level. To this day he claims he beat the game because he had done all he could. One of these days I'd like to coop doom 2 with him but I think his gaming days are well behind him. He was always more of an asteroids guy anyways. Great video btw. Loved seeing the differences as v1.666 is kinda vague in my mind at this point since I played it in 1999 as a kid.

Son of a diddly. Now I've only pretty much played 1.666 all these years, except for likely the new Bethesda released "remakes" which I've only played for few minutes. But long enough that when I got to second level in that beginning I thought shotgunner had opened those bars before I got to that room. I thought engine has been changed or something for it to happen. It's literally only time I've ever seen that place without bars, so it's 1.666 been for ages to me. It's almost scary how many places I still remembered seeing this video. 😄