Patterns Warframe exemplifies

Pattern	How Warframe uses it
loadout-as-budget	Power lives inside a fixed mod-capacity budget (60 points); matching polarities = packing efficiency.
permanent-grind-currency	Forma converts time spent into permanent slot expansion, but each Forma costs full re-leveling.
community-driven-balance	Riven Disposition rebalances quarterly based on weapon usage stats. Soft balance without base-stat nerfs.
random-perfect-roll-economy	Rivens are unique-stat mods with random rolls → built-in lottery + market mechanic.
crafting-timer-as-pacing	Real-time wait (12h/72h) detaches "earned" from "playable", smooths reward dopamine, doubles as soft monetization.
vault-rotation-economy	Older Primes get vaulted, creating scarcity that drives both farming and Prime Access purchases.
dual-currency-with-trade	Players trade premium currency to each other. Free players become supply for paying players' demand.
non-streak-login-rewards	Total-days milestones, not consecutive streaks. Friendlier retention.
free-battle-pass	All Nightwave rewards free. Distinguishes from predatory paid passes.
nested-progression-graph	Multiple orthogonal progression axes layered over years. New systems live alongside old ones.
mastery-as-meta-currency	A meta-rank that gates content but is earned by trying every piece of gear, incentivizing breadth.
handcrafted-pcg-hybrid	Hand-authored tile-sets, procedurally connected. (Same trick as Sparklite, predates it by 6 years.)
damage-type-matrix	Combat depth from element/armor matchups rather than from raw damage.
subsume-system	Helminth lets you replace 1 of 4 abilities with another frame's. Combinatorial depth on top of an already-large set.
incarnon-evolution	Old weapons get an alternate "void-attuned" mode + 5 evolutions. Resurrects obsolete gear instead of designing new gear.