Chotanagpur Fun Castle, located on Kathitand Rd opposite Ratu Palace, Ratu, Ranchi, Jharkhand 835222 (phone: +91 7717763508, website: chhotanagpurfuncastle.com), is Ranchi's popular family amusement park spanning ~80 acres (65 acres pond), blending dry rides, water slides, boating, and a small cafe for fun outings. Open typically Mon-Sat 1 PM–5:30 PM, Sun 12 PM–6:30 PM (closes ~7:30 PM per query), it offers go-karts, tunnel/dragon coaster slides, water slides, bull rides, swings, kids' rides, boating on the pond, playgrounds, and a food plaza with budget snacks—ideal for 2-hour family/friend hangouts (busier weekends). Tickets: ~₹200/person weekdays (kids ₹100), higher weekends (~₹250–700 combos), plus lockers ₹50, costumes ₹50 for water areas. Rated 3.8/5 from 4,624 Google reviews (Tripadvisor 4.3/4), it's praised for kid thrills, value, and vibes but criticized for broken rides, maintenance needs, expired snacks, and basic facilities (30 min from city, traffic-prone)—great local spot despite flaws, with no major 2026 changes noted.