I realized I forgot to mention that I actually did read all SCPs that existed, but this was back when there were only about three thousand of them, so a lot of these are just re-skims on my part.
This section has the first "monster SCPs" that I really like for gaming. Too many of the monster SCPs are just "they torturekill you if you break rule X" which are less interesting for gaming than you might think. Puzzles make more sense in gaming if they have other stakes. The Tortured Iron Soul (SCP-203, below) is quite dangerous and gruesome but the obvious motivation in interacting with it is to gain new information about it such as its origin and effects. And The Protector (back to back! SCP-204), once you set aside the edginess of "let's use these pedophiles to activate the anomalistic entity" is also really interesting. This edginess sometimes ruins otherwise interesting entries - the phonograph record that causes time to freeze when it skips is primarily tested by killing someone near it, for example. C'mon. Couldn't we think of other things to test with it?
Overall, there's a LOT of good candidates in this range for gaming even though from a project perspective there's not much mythos or worldbuilding going on. I was really surprised how many of these 100 I thought were good! There are still plenty of derivative SCPs (one is just "what if Silent Hill, man"), and much of the project's identity still remains in the future. One notable entry is the first real action-oriented SCP, primarily consisting of transcripts of the special forces of the SCP going into a weird dimension. It's also been updated to modern presentation standards so it's neat!
There's also my first disease SCP - a lot of these are just zombie/rage infections that make people into m m m m m monsters! Gamers already got plenty of monsters, they don't need more. But this one (Base Eleven Disorder, below) is really nice and intriguing. I didn't pick it because it's not really scenario-inducing, but the Dialysis Bracelet (SCP-269) is also a decent "medicalized" SCP, where you "kinda get what it's trying to do" but it's too alien/bizarre to pull it off.
Similarly, Professor William Wordsworth's Collection of Curiosities is good because every new animal comes with sketchy/blinkered but quasi-accurate instructions on how to contain and care for each new anomalous creature, which of course is much more valuable (and challenging) than just gunning them down.
Locations
SCP-211 - Paper-Covered Building - https://scp-wiki.wikidot.com/scp-211
SCP-222 - Clone Coffin - https://scp-wiki.wikidot.com/scp-222
SCP-238 - Building Complex - https://scp-wiki.wikidot.com/scp-238
SCP-257 - Professor William Woodsworth’s Collection of Curiosities - https://scp-wiki.wikidot.com/scp-257
SCP-274 - Graffito - https://scp-wiki.wikidot.com/scp-274
Items
SCP-205 - Shadow Lamps - https://scp-wiki.wikidot.com/scp-205
SCP-206 - The Voyager - https://scp-wiki.wikidot.com/scp-206
SCP-216 - The Safe - https://scp-wiki.wikidot.com/scp-216
SCP-232 - Jack Proton's Atomic Zapper - https://scp-wiki.wikidot.com/scp-232
SCP-241 - Good Home Cooking - https://scp-wiki.wikidot.com/scp-241
SCP-243 - Animation - https://scp-wiki.wikidot.com/scp-243
SCP-249 - The Random Door - https://scp-wiki.wikidot.com/scp-249
SCP-261 - Pan-Dimensional Vending - https://scp-wiki.wikidot.com/scp-261
SCP-262 - Coat of Many arms - https://scp-wiki.wikidot.com/scp-262
SCP-288 - Stepford Engagement Rings - https://scp-wiki.wikidot.com/scp-288
SCP-294 - The Coffee Machine - https://scp-wiki.wikidot.com/scp-294
Entities
SCP-200 - Chrysalis - https://scp-wiki.wikidot.com/scp-200
SCP-203 - Tortured Iron Soul - https://scp-wiki.wikidot.com/scp-203
SCP-204 - The Protector - https://scp-wiki.wikidot.com/scp-204
SCP-229 - Wire Weed - https://scp-wiki.wikidot.com/scp-229
SCP-247 - A Harmless Kitten - https://scp-wiki.wikidot.com/scp-247
SCP-254 - Employee of the Month - https://scp-wiki.wikidot.com/scp-254
SCP-255 - Base Eleven Disorder - https://scp-wiki.wikidot.com/scp-255
SCP-263 - "Cash or Ash?" - https://scp-wiki.wikidot.com/scp-263
SCP-265 - Black Volga - https://scp-wiki.wikidot.com/scp-265
SCP-266 - Will o' The Wisp - https://scp-wiki.wikidot.com/scp-266
SCP-270 - Secluded Telephone - https://scp-wiki.wikidot.com/scp-270
SCP-272 - An Old Iron Nail - https://scp-wiki.wikidot.com/scp-272
Special Note!
A fully downloadable and interactive SCP is in this range, and it's very cute. An RPGMaker 2003 game, check out SCP 245 - SCP-RPG - https://scp-wiki.wikidot.com/scp-245
