Almost all the games featured in the video were created using the SGDK dev kit. The creator, Stephane Dallongeville, allows it to be used for free by everyone, even for commercial releases! I would encourage anyone who has the ability to support his efforts on Patreon. He is still working on it after 10+ years and is currently developing a new sound driver:
  / sgdk  

Here are the inks to the games featured in the video. Please support the creators however you can!

EARTHION:
  / yuzokoshiro  

LUFTHONHEIT:
  / birt_shannon  
   / @cyberdeous  
  / carsten1349  

CHORDS:
  / matteusbeus  

DEAMON CLAW:
   / @bitbeamcannon2468  
https://bitbeamcannon.com/

KIRITO:
  / tulfared  

GEARS OF RAGE:
  / laserbitgames  

SPACE HUNTER:
   • Space Hunter Demo for Christmas 2023 ...  

STARFOX:
  / gasega68k  
   / @gasega68k  

HEAVY RECOIL:
  / mix256  

SHADOW DANCER:
  / danielmoura79  

LIFE ON EARTH / THE SECRET OF THE 4 WINDS:
https://kai-magazine-software.fwscart...

SPACE PANTS GAMES (GUNSLUGS ETC):
https://theretroroomgames.com/product...
  / games_pants  

COLOCO DX:
  / tuxedogamedevs  

FATAL FURY SPECIAL:
  / rheogamer  
   / rheogamer  

STREET FIGHTER ALPHA:
   • Street Fighter Zero SGDK Port WIP#5 (...  

GO FOR IT!:
  / iheartpizzallc  

KENSEIDEN 2:
   / @linkueibr  

PLANET B:
   • Planet B - 16bits procedural roguelik...  

MANIFOLD:
  / erikhaliewicz  
   / @tennokoemusic  

SUPER POWER KICK:
  / kakoeimon  

SACRED LINE 2:
   • Sacred Line II Trailer  
http://sashadarko.com/sacred-line-ii/

CITY CONNECTION:
   • Offscreen Review - CITY CONNECTION - ...  

MEGA R-TYPE:
  / theroboz  

ZPF:
  / zpf_megadrive  

IRENA METAL GENESIS FURY:
   • Irena Genesis Metal Fury - Cyber City...  
  / whiteninjaretro  

MEGACRAFT:
   • MEGACRAFT - "Minecraft" on the Sega G...  

THE KESSLEY INCIDENT:
   • The Kessler Incident, by Resistance  

PSCD GAMES (BIO EVIL ETC):
  / greengh0st1  

PHANTOM GEAR:
https://megacatstudios.com/pages/phan...

Timestamps:

0:00 - Intro
1:23 - Earthion by Ancient (Yuzo Koshiro)
2:53 - Tech Demo by Shannon Birt
3:33 - Lufthonheit by Shannon Birt, Carsten Glaser, Crouzet Laurent, and Cyan
4:21 - Chords by Matteusbeus
5:12 - Daemon Claw by Bit Beam Cannon and Neofid Studios
6:14 - Kirito the Game by Cyber808, Thulf Ham, Rek1Visqueux, Fre Dial, and FredoLeponge
6:58 - Gears of Rage by Laserbit Games
7:28 - Space Hunter by Daniel Moura, Daniel Cisneros, and David Nnay
8:35 - Starfox Port by Gasega68k
9:49 - Heavy Recoil by Mikael Tillander
10:25 - Shadow Dancer Arcade Port by Daniel Moura
11:19 - Life on Earth by Kai Magazine Software and Savaged Regime
11:46 - The Secret of the 4 Winds by Kai Magazine Software
12:54 - Space Pants Games projects (Gunslugs, Go! Go! PogoGirl, Cube Droid, Unnamed SHMUP)
13:29 - Dragon’s Lair and Wacky Racers by Mr Space Pants
13:51 - ColocoDX by Tuxedo Game Development Studios
14:23 - Juggernaut Sprite Size Tech Demo by Pyron and RheoGamer
14:42 - Real Bout Fatal Fury Special by RheoGamer
15:15 - Street Fighter Alpha by Davilia Games
16:20 - Go For It! by I Heart Pizza
16:59 - Kenseiden 2 by Master Linkuei and Edmo Caldas
17:57 - Planet B by Overrated Future
18:21 - Manifold by Erik, Railslave, and TennoKoe
19:33 - Megacraft by Jesse and Jed Shakarji, Shane Geiger, and C418
20:07 - The Kessler Incident (tech demo) by Resistance
20:28 - PSCD Games projects (Hunter Girls, Yeah Yeah Beebiss 2, and BioEvil)
21:24 - Phantom Gear by Bit Rules Games
22:10 - Super Power Kick by Kakoeimon
22:34 - Sacred Line 2 by Sasha Darko
23:03 - City Connection port by HabitSoft
23:38 - Mega R-Type by TheRoboz
24:03 - ZPF by Wide Pixel Games/Mikael Tillander, Gryzor Rozyrg, and JGVex
24:54 - Irena Genesis Metal Fury by White Ninja Studios
25:19 - Outro/SGDK Info