This is an annual festival dedicated to Metroidvanias. This year, it brought together around 250 Metroidvanias from all over the world. Check out the festival page and find the best Metroidvania that suits your tastes. And support FLASHLOOP =)
https://store.steampowered.com/curator/45063983/sale/MetroidvaniaFusionFestival
FLASHLOOP at Metroidvania Fusion Festival
Source: Steam Community (opens in a new tab)