{"schemaVersion":1,"record":{"key":"mechanic/engagement-retention--family-15","type":"mechanic","id":"engagement-retention--family-15","lang":"en","title":"Limited availability and FOMO","summary":"A reward or event is available for a limited period. Fear of missing out may prompt returning even without a current desire to play.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/engagement-retention--family-15/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/engagement-retention--family-15.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/engagement-retention--family-15.md","aliases":[],"tags":["Engagement, retention and addictive patterns","Mechanics catalog"],"sourceIds":["source-1e1cff35e7d9ee46"],"sources":[{"id":"source-1e1cff35e7d9ee46","title":"Final Fantasy XIV","url":"https://na.finalfantasyxiv.com/lodestone/playguide/pvpguide/system/","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"FOMO means fear of missing out."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-15-variants\"></a>\n\n- Temporary events: content available for a limited period <a id=\"variant-engagement-retention-15-01\"></a>\n- Exclusive event rewards: missing a specific item will result in the loss of a specific item. <a id=\"variant-engagement-retention-15-02\"></a>\n- Battle pass with deadline: progress must be completed before the deadline <a id=\"variant-engagement-retention-15-03\"></a>\n- Rotating store: the desired product appears only in certain periods <a id=\"variant-engagement-retention-15-04\"></a>\n- Limited summon banner: the desired character or item can be obtained in a certain window <a id=\"variant-engagement-retention-15-05\"></a>\n- Short claim windows: the reward must be claimed within a narrow period of time <a id=\"variant-engagement-retention-15-06\"></a>\n- Temporary benefit multipliers: bonus experience or loot make the current session especially profitable <a id=\"variant-engagement-retention-15-07\"></a>\n- Burning resources and tickets: unused opportunity disappears <a id=\"variant-engagement-retention-15-08\"></a>"},{"id":"context","title":"Context and limits","body":"A map of 160 techniques for analyzing interest, returns, costs and pressure on the player. Involvement in itself does not mean dependence; the presence of separate mechanics does not determine the diagnosis or prove causation. This is the author's classification for critical analysis of design, and not a scientifically established list of the causes of gaming disorder. Assess context, audience, voluntariness of participation, and opportunity to stop."}],"relations":[],"placements":[{"catalogId":"engagement-retention","id":"family-15","title":"Engagement, retention and addictive patterns","url":"https://gamemechanics.pro/en/mechanics/engagement-retention/#family-15","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Limited availability and FOMO","description":"A reward or event is available for a limited period. Fear of missing out may prompt returning even without a current desire to play.","image":{"src":"images/mechanics/rpg-ffxiv-pvp-system-63.webp","width":880,"height":474,"game":"Final Fantasy XIV","sourceUrl":"https://na.finalfantasyxiv.com/lodestone/playguide/pvpguide/system/","originalUrl":"https://lds-img.finalfantasyxiv.com/h/W/khuQeeKryhJ_LFXegtBKpcRYYY.jpg","credit":"Square Enix; official guide screenshot","rights":"Game imagery © its respective rights holders. Official game guide or publisher-distributed screenshot; all rights reserved. Excluded from MIT and CC BY 4.0.","caption":"A series defines the period for earning PvP rewards","alt":"A series defines the period for earning PvP rewards","markers":[{"x":49,"y":10,"label":"The series number distinguishes this reward period from others"}]},"tips":["State deadlines honestly and offer a later route to missed content."],"examples":[{"title":"Final Fantasy XIV","url":"https://na.finalfantasyxiv.com/lodestone/playguide/pvpguide/system/"}]}},"endsAt":null,"provenance":"Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.","license":"CC-BY-4.0","codeLicense":"MIT","attribution":"gamemechanics.pro contributors","catalogKey":"catalog/engagement-retention"}}