This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Of, having, or relating to nostalgia.

adj. Reminiscent of the speaker's childhood or younger years.

n. A person who displays nostalgia for something.

adj. Of or pertaining to nostalgia; affected with nostalgia.

Relating to, characteristic of, or affected with nostalgia; homesick.

adj. unhappy about being away and longing for familiar things or persons

"It is value for the construction time, role-playing fun and a certain nostalgic value that sets it apart from most other toys."

wishful    desirous   

regretful    wistful    remorseful    bittersweet    poignant    rapturous    pensive    long-buried    disturb    fleeting