'Sonic 1 Definitive' (2021) by RadiantNexus Team (Hack)
Reimagines 'Sonic 1' by rearranging levels. remixing music, and inspirations from the 8-bit incarnation.
https://shc.zone/entries/contest2021/552
'Meander Land' (2023) by WhiskerMidi (Original Game)
Inspired by 'Super Mario Land' graphics!
https://www.sonicfangameshq.com/forums/showcase/meander-land.1698/
'Kirby's Halloween Adventure' (2021) by @Kirb_Star (Hack)
A spooky hack of 'Kirby's Adventure' with a ton of new characters and features.
https://www.sonicfangameshq.com/forums/showcase/kirbys-halloween-adventure-2020-2021-update.783/
'Mega Man X Synthesis' (2021) by Aspel The Blue (Demo)
Play as X and Zero!
https://www.sonicfangameshq.com/forums/showcase/mega-man-x-synthesis-sage-2021-demo.1115/
'STH2006 Project Demo 4' (2018) by brianuuu (Generations Mod)
Play through Kingdom Valley from 'Sonic 06', but with 'Sonic Generations'. The project plans to port all stages over.
https://www.youtube.com/watch?v=FyjvdwA8o4k&t=423s&ab_channel=brianuuuSonicReborn
'Cursed Hedgehogs 2: Ken the Penders' (2021) by @PkN0PE (SA2 Mod)
Gives Sonic, Shadow & Knuckles some Archie Sonic makeovers.
https://shc.zone/entries/expo2021/384
'Chaotix' (2023) by Team Combi-Rings (SRB2 Mod)
Brings the Chaotix to 'Sonic Robo Blast 2' - including Bomb!
https://mb.srb2.org/addons/the-chaotix.5734/
'Super Hard Mode' (2020) by Dry Paratroopa (SA2 Mod)
Make things more chaotic, more difficult, and more wild.
https://www.sonicfangameshq.com/forums/showcase/super-hard-mode-sa2.650/
'Project SXU' (2020) by Etendo (Demo)
Aims to recreate ‘Sonic X-treme’ as close as possible, while adding original ideas and concepts.
https://www.sonicfangameshq.com/forums/showcase/project-sxu.525/
'Nuclear Cheetah' (2023) by Spontman (Original Demo)
Bounce, pounce, and slide your way through fast-paced levels as Chaz, the radioactive cheetah!
https://www.sonicfangameshq.com/forums/showcase/nuclear-cheetah-sage-trials.1773/