Want to know how common it is to have keys in maps that aren't required to get to the exit

[invictius]

Been powering through Surge and I can't remember many maps that did this.  I'm almost certain it doesn't happen in the iwads apart from perhaps traveling to the secret exit.

[NaturalTvventy]

E2M2 springs to mind with the yellow key. I use a lot of optional keys in my work. I think E2M2 left a big impression on me.

[Uni]

Aside from E2M2 which was already mentioned, I'm pretty certain that MAP19 "The Citadel" does not requires all 3 keys even though they're all presented in the map. You can exit the map using the red skull key plus either the blue or the yellow skull key.

[Memfis]

This is how I use keys:

 

 

 

[HAK3180]

As far as iwads, and as far as off the top of my head:

 

Doom

E1M3 (secret)

E1M4 (eliminates some backtracking)

 

E2M1 (secret)

E2M2 (secret)

 

E3M5?

 

E4M5 (I'm not including most shortcut/speedrun tricks, but this one is just too obvious)

E4M6 (I'm pretty sure one key just gives you the invulnerability to kill the cyberdemon easily)

 

Doom 2

Map 15 (just a secret, not the secret exit, if I remember correctly)

Map 19 (just need two of three)

 

TNT 

Map 11 (you need either red or blue, I believe)

 

Plutonia

???

I'm picturing Map 09 having the Doom 2 Map 19 concept, but I'm not sure they're not all required elsewhere...

 

 

Seems they stopped doing that or I know Doom a lot better than I thought, compared to 2 and Final.

Edited February 23, 2018 by HAK3180 : Just remembered Abattoire

[Bauul]

More common than you think I reckon.

 

In Foursite for example, I used all three keys specifically for encourage backtracking to unlock secret areas.

[Roofi]

 

A rain of keys ! Watch out for your head !

[Pure Hellspawn]

2 hours ago, Roofi said:

STOP QUOTING IMAGES, DUMBASS

 

A rain of keys ! Watch out for your head !

is that Mock 2: The Speed of Stupid?