(Reposted in a public channel. I would like to deleted my previous post but cannot)
I’ve been active in the Roblox showcase community since 2011 and decided to throw together a list of all the showcases that are worth visiting. I’ve definitely forgotten more showcases than I’ve found so I’m going to be updating this list as I find more. It takes a long time, so if you guys have any showcases you think belong here drop me a message or reply with a link 
Note: Some of these showcases were made years ago. Whilst some may not seem impressive by today’s standards please keep in mind that they were likely very significant for their time.
The List
“?” by Tohb
https://www.roblox.com/games/1161446638/unnamed
“Afternoon Glow” by Whwh25
https://www.roblox.com/games/2699195685/Afternoon-Glow
“Airship Station” by OriginatedSystemized
https://www.roblox.com/games/147877411/Airship-Station
“All Gone” by spicyhunter3
https://www.roblox.com/games/43945684/All-Gone
“Anchored Islands” by OriginatedSystemized
https://www.roblox.com/games/179188809/Anchored-Islands-WIP
“A Perfectly Legitimate Chess Club” by Patrline5588
https://www.roblox.com/games/112779737/A-Perfectly-Legitimate-Chess-Club-slow-redevelop
“Aurora” by AerialsAbove
https://www.roblox.com/games/1543797764/Aurora
“Brook Lane” by BlastB00m
https://www.roblox.com/games/129928901/Brook-Lane
“Central Japan” by DEE3P
https://www.roblox.com/games/884770397/Central-Japan
“City Hall Subway Station | New York City” BY RightRight
https://www.roblox.com/games/114737849/City-Hall-Subway-Station-New-York-City
“Compound” by Samaxis
https://www.roblox.com/games/56243423/Compound-Fiiiiiiixed-it
“Consomnio: Legacy” by CyanObject
https://www.roblox.com/games/1127327802/Consomnio-Legacy
“Countryside” by Finwei
https://www.roblox.com/games/4303346/Countryside
“Cryo Core 2” by Keeshee
https://www.roblox.com/games/34849968/Cryo-Core-2
“Derelict Office Building” by TacoConsumer
https://www.roblox.com/games/76019982/Derelict-Office-Building-Showcase
“Evil Lair” by Fractality
https://www.roblox.com/games/19769629/Evil-Lair
“Fentanest” by Tot3m
https://www.roblox.com/games/260692388/Fentanest-fixed
“Fishy’s Zombie Vignette Colection”
https://www.roblox.com/games/26152754/Fishys-Zombie-Vignette-Collection
“Formidable Obligations” by OriginatedSystemized
https://www.roblox.com/games/258245185/Formidable-Obligations
“Generator Room” by ANJ07
https://www.roblox.com/games/459114904/Generator-Room-Showcase
“Global Theatre” by xiayurei
https://www.roblox.com/games/287089/Globe-Theatre
“GOT Project” by ArcticCitadel
https://www.roblox.com/games/790138192/GOT-Project
“Haku” by Joseph155
https://www.roblox.com/games/12672081/Haku-SHOWCASE
“Hokkaido Lofts” by DEE3P
https://www.roblox.com/games/1321760558/Hokkaido-Lofts
“Immobilien Williams v3”
https://www.roblox.com/games/1347117017/Immobilien-Williams-v3
“Irregularity” by OriginatedSystemized
https://www.roblox.com/games/150847894/Irregularity-edited
“Khranos” by Minish
https://www.roblox.com/games/1608864/Khranos
“Légèreté de la liberté” StuntDesigner
https://www.roblox.com/games/30592816/L-g-ret-de-la-libert
“Metro Map” by TrustMeImRussian
https://www.roblox.com/games/1093577611/Metro-Map-EBR
“Mini Build 1” by AerialsAbove
https://www.roblox.com/games/2546825092/Mini-Build-1
“Minus 3” by Tot3m
https://www.roblox.com/games/344494660/Minus-3
“Nevada Outpost 5” by Joseph155
https://www.roblox.com/games/1113230456/Nevada-Outpost-5-SHOWCASE
“Nyanja” by Tohb
https://www.roblox.com/games/1175241503/Nyanja
“Omega Skyline” by ArcticCitadel
https://www.roblox.com/games/477976588/Omega-Skyline
“Orbital Outpost” by ArcticCitadel
https://www.roblox.com/games/522413931/Orbital-Outpost
“Origins - The Discovery” by Comicsin
https://www.roblox.com/games/2043427487/Origins-The-Discovery
“Orion” by Joseph155
https://www.roblox.com/games/637757270/Orion-SHOWCASE
“Pirates Heaven” by Jardicel
https://www.roblox.com/games/6122389/Pirates-Heaven-abandoned-un-copy-lock
“Planeta” by DEE3P
https://www.roblox.com/games/1010039009/Planeta
“Project Paris” by Aeternos
https://www.roblox.com/games/160305900/Project-Paris-WIP
“Reclaimed” by AerialsAbove
https://www.roblox.com/games/1553184991/Reclaimed
“Redsand Marina” by Aeternos
https://www.roblox.com/games/135250774/Redsand-Marina-WIP
“Reflection” by ArcticCitadel
https://www.roblox.com/games/2668547130/Reflection-V3
“rip ur toaster” by OriginatedSystemized
https://www.roblox.com/games/217805913/rip-ur-toaster-may-or-may-not-join-at-ur-own-risk
“Rituals” by HIERO_GLYPH
https://www.roblox.com/games/263560705/Rituals
“River house” by Electiz
https://www.roblox.com/games/116981686/River-House
“ROBLOX History Museum” by The_Immortal
https://www.roblox.com/games/756041377/ROBLOX-History-Museum-I
“Scottifly’s B-25 Bomber” by Scottifly
https://www.roblox.com/games/103703026/Scottiflys-B-25-Bomber-now-with-more-cowbell
“Sea Breeze Home” by Yengyang4
https://www.roblox.com/games/2277887/Sea-Breeze-Home
“Sentimental” by Suosmo
https://www.roblox.com/games/191067936/Sentimental
“Seoliem” by Tot3m
https://www.roblox.com/games/243895118/Seoliem-Ebr
“Sevastopol Station” by Paratroopersolider
https://www.roblox.com/games/182384834/Sevastopol-Station
“Sherlock’s Flat” by Suosmo
https://www.roblox.com/games/198570810/Sherlocks-Flat
“Showcase” by TrustMeImRussian
https://www.roblox.com/games/602275525/Showcase-1-5
“Sieranevada” by Modul
https://www.roblox.com/games/1901267811/97-Sieranevada-Showcase
“Simplicity” by Matthew_James
https://www.roblox.com/games/134855558/Simplicity-Lighting-Update
“Somewhere Nowhere” by Roytt
https://www.roblox.com/games/25874914/Somewhere-Nowhere
“Spaceship build” by Diesoft
https://www.roblox.com/games/1228803213/Spaceship-build-Uncopylocked
“Spring’s Rock Showcase” by AerialsAbove
https://www.roblox.com/games/451673621/Springs-Rock-Showcase
“Station 07” by AN07
https://www.roblox.com/games/452254045/Station-07-Showcase
“Tarnished Coast” by Lance7
https://www.roblox.com/games/2286454/Tarnished-Coast-Incomplete
“Temple of the Sea” by Unclear
https://www.roblox.com/games/69126614/Temple-of-the-Sea
“The Brimstone Garden” by Blockrat
https://www.roblox.com/games/14205428/The-Brimstone-Garden
“The Canadian” by Electiz
https://www.roblox.com/games/265381581/The-Canadian-Showcase
“The Colony” by Sofloann
https://www.roblox.com/games/160047428/The-colony-OutDated
“The Hollow Somerset” by Joseph155
https://www.roblox.com/games/555620457/The-Hollow-Somerset-SHOWCASE
“The Island House” by Aeternos
https://www.roblox.com/games/133583233/The-Island-House-V2
“The Land” by StandardModel
https://www.roblox.com/games/239812309/The-Land-Re-Mastered
“The Old Cellar 1918” by Modul
https://www.roblox.com/games/2523632036/The-Old-Cellar-1918-showcase
“The Second Colony” by Sofloann
https://www.roblox.com/games/181799969/The-Second-Colony-read-desc
“The Third Colony” by Sofloann
https://www.roblox.com/games/469144652/The-Third-Colony
“Timeless” by Unclear
https://www.roblox.com/games/60440225/Timeless
“Times of Change” by Finwei
https://www.roblox.com/games/102948830/Times-of-Change
“Tranquility” by xJennyBeanx
https://www.roblox.com/games/1627114173/Tranquility-Showcase
“Tree of Life” by RavenShield
https://www.roblox.com/games/123888406/Tree-of-Life
“TrustFall fading” by Sofloann
https://www.roblox.com/games/156910052/TrustFall-fading-EBR-Entry
“Tuscany, Italy” by haho4
“Underground Base” by Fractality
https://www.roblox.com/games/6590174/Underground-Base
“Vehicle Hangar” by Paratroopersolider
https://www.roblox.com/games/340528638/Vehicle-Hangar
“Villa of Architects” by ZeroVelocity & fisherman94
“Walkway” by subzeroalphaq
https://www.roblox.com/games/63014974/Walkway-EBR
“Winter Cabin” by TheShipArchitect
https://www.roblox.com/games/290923865/Winter-Cabin
“Wizard Hut” by Urbanize
https://www.roblox.com/games/141147056/Wizard-Hut
“Wyvern Inn” by Urbanize
https://www.roblox.com/games/140758744/Wyvern-Inn