I'm following up the torrents containing old games YSFC uploaded (search for him) with more old games.

I can't guarantee they all work on a modern Windows, but many should.

Contains these games:

[970316] [ビデオシステム] アイドル麻雀 ファイナルロマンスR (Idol mahjong final romance R)
[971205] [BlueBell] 雪降る季節へ -想い、あなたに- (Yukifuru kisetsu he)
[980807] [アボガドパワーズ] 4人打ちおしおき麻雀伝説 つもバカ日誌 (4-nin-uchi oshioki mahjong densetsu)
[980905] [Ange] 楽園の夏 (Rakuen no natsu)
[981127] [APRICOT] 夢幻夜想曲リニューアル (Mugen yasoukyoku)
[981127] [Queen Soft] マージャン 魔女ッ子☆大戦 (Mahjong Majokko taisen)
[981127] [inspire] PrettyCrisis
[990225] [TOPCAT] Works Doll
[990312] [PURPLE] 夢幻 -虚実と真実- (Mugen ~Kyojitsu to shinjitsu~)
[990428] [Euphony Production] My Friends
[990624] [digi ANIME] プレゼントプレイ (Present Play)
[990701] [AliceSoft] ママトト -a record of war- (Mamatoto)
[990723] [ちぇりーそふと] ヒロイン (Heroine)
[990827] [ぺんぎんワークス] 淫影 ～フレームの中の天使～ (In'ei ~Fureemu no naka no tenshi~)
[990902] [TOPCAT] Ｌ－エル－
[990910] [Sweet Basil] リトルMyメイド ～パンドラBOX～ (Little My Maid)
[991014] [LOZE] 幻魔戦記レクシオン (Genma senki Rekushion)
[991022] [C's ware] Re-leaf Plus
[991119] [ACTRESS] 星のピアス (Hoshi no piasu)
[991126] [REWNOSS] FOLKSONG -フォークソング-
[991203] [artifact] ラヴィドシャトゥ (La vie de chateau)
[991210] [Ripe] すいーとじぇみに ～僕の妹～ (Sweet Gemini ~Boku no imouto~)