Early 2010s Touhou arrange energy and it's dripping with that earnest doujin intensity. Touhou Pocket War Evolution is a tactical fangame from 2010, and the soundtrack plays like someone poured their entire heart into sixteen tracks.
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"運命のアリス" (Alice's Destiny) carries this dramatic string-driven arrangement that treats Alice like the protagonist she deserves to be. "六十年目の戦慄" (Sixty Years' Trembling) brings real tension, the kind of track that makes you restart a failed map.
Then "夢見る少女" just quietly devastates. The title track "Evolution-幻想郷恋文" sets up this love-letter-to-Gensokyo tone that never lets go. If you played any of the Pocket War series, this entry's soundtrack is where the arrangements really found their footing.