?
Case Closed

Case Closed

Arena Gaming
4.5 ★★★★★★★★★★ 14K reviews 1M+ Downloads 18+ Rated for 18+
Contains ads In-app purchases
Install Play Protect
C
C
C

About this app

How to play Case Closed

DraftKings is requesting that a panel of the U.S. Patent and Trademark Office (USPTO) nullify a patent that trading house Cantor Fitzgerald says the gaming company copied for its benefit.

U.S. Patent No. 12,406,284, which lists Commerce Secretary and former Cantor CEO Howard Lutnick as its primary inventor, covers geolocation technology commonly used in sports betting.

Geolocation services, which are typically purchased through third-party vendors, are used by sportsbook operators to ensure that their clients are placing wagers from jurisdictions in which sports wagering is legal.

How to play Case Closed

Before Patrick Mahomes laced up his cleats for his 2026-2027 NFL regular-season debut, US prediction markets had already cleared a historic benchmark for the opening week of the season.

Two operators alone – Kalshi and Polymarket – topped the combined $1 billion mark in NFL trading activity over the first six days of Week 1, according to numerous measures this week. During the period, Kalshi recorded NFL volume of $983.4 million, according to DeFi Rate, earning the pole position by a large margin. Mahomes and the Kansas City Chiefs thrashed the Denver Broncos 31-10 on Monday Night Football, capping the largest week for prediction markets ever.

Even before the primetime matchup in Kansas City, it became abundantly clear that the industry would shatter previous marks for weekly activity. The AFC West showdown bolstered the already robust totals. Overall, volume for the week hit a record $15.9 billion, according to Bank of America, up 16% from a week earlier.

What is Case Closed?

Bet365 noted the impact of the UK government’s near doubling of the remote gaming duty, which increased from 21% to 40% on 1 April this year.

Additionally, a new remote betting duty is set to come in from April 2027, which will raise the effective tax rate on all sports betting products except horse racing from 15% to 25%.

Several other operators have responded to the UK tax hikes by announcing shop closures.

App info

Updated onMay 31, 2026
Size143 MB
Installs1M++
Current Version6.4.2
Requires Android7.0 and up
Content RatingRated for 18+
Interactive ElementsUsers Interact
Released onJul 07, 2020
Offered byArena Gaming
10 Pharaohs10 Glossy Hot