IMHO.

副作用之瞳-Tlicolity Eyes- vs 幻蝶:双生对立的少女

副作用之瞳-Tlicolity Eyes- and 幻蝶:双生对立的少女 both land in Casual on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Casual games on Steam. 副作用之瞳-Tlicolity Eyes- (2021) is 9 years older than 幻蝶:双生对立的少女 (2030). 副作用之瞳-Tlicolity Eyes- is free; 幻蝶:双生对立的少女 is paid (Price unknown). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Which should you pick?

Choose 副作用之瞳-Tlicolity Eyes-

Choose 副作用之瞳-Tlicolity Eyes- if you want an Adventure, RPG, and Free To Play experience. On Steam, it's free to play, so the barrier to trying it is zero. 副作用之瞳-Tlicolity Eyes- launched in 2021.

Choose 幻蝶:双生对立的少女

Choose 幻蝶:双生对立的少女 if you want an Indie experience. On Steam, it's the newer release (2030) and ships with the modern feature baseline. 幻蝶:双生对立的少女 launched in 2030.

Both 副作用之瞳-Tlicolity Eyes- and 幻蝶:双生对立的少女 sit in Casual on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.

Side-by-side comparison

副作用之瞳-Tlicolity Eyes- vs 幻蝶:双生对立的少女 — Steam metadata comparison
副作用之瞳-Tlicolity Eyes- — Steam game cover副作用之瞳-Tlicolity Eyes-幻蝶:双生对立的少女 — Steam game cover幻蝶:双生对立的少女
Released20212030
GenresAdventure, RPG, Free To Play, CasualIndie, Casual
PlatformsWindowsWindows
Steam DeckUnratedUnrated
PriceFree to playPrice unknown
Steam reviews9 reviews
MultiplayerSingle-player onlySingle-player only
DevelopersIDEA FACTORY, Frontier Works, JoyMoe Interactive Entertainment LimitedFlowtopia 花海社

Side by side

副作用之瞳-Tlicolity Eyes- vs 幻蝶:双生对立的少女 — FAQ

Should I play 副作用之瞳-Tlicolity Eyes- or 幻蝶:双生对立的少女 first?
If you want chronology, 副作用之瞳-Tlicolity Eyes- (2021) came out before 幻蝶:双生对立的少女 (2030). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
Are 副作用之瞳-Tlicolity Eyes- and 幻蝶:双生对立的少女 similar?
They overlap on Casual on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
Is 副作用之瞳-Tlicolity Eyes- free?
Yes — 副作用之瞳-Tlicolity Eyes- is a free-to-play Steam title. 幻蝶:双生对立的少女 is paid (Price unknown).
副作用之瞳-Tlicolity Eyes- vs 幻蝶:双生对立的少女 — Verdict (2026) · imho.run