Bitcoin is a peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending.
Knights is an action game for two players involving two knights who must explore randomly generated dungeons and complete various quests. Each game revolves around a quest. A typical quest would involve finding some items and carrying them back to your starting point. This may sound easy, but as there are only enough items in the dungeon for one player to win, you may end up having to kill your opponent to get his stuff! Other quests involve escaping from the dungeon, fighting a duel to the death against the enemy knight, or destroying an ancient Book using a special Wand. While exploring the dungeon, you will find aid in the form of weapons, potions, and magical spells, but beware, for there are also deadly traps, bloodthirsty vampire bats, and zombies who exist only to kill living knights! This is a remake of an Amiga game by Kalle Marjola from 1994. This version has generally smoother gameplay than the original, and has full support for online play.
UBoat Code Navigator allows you to browse through and do manual reviews of your source code with just a Web browser. It works completely offline; there is no server or configuration required. UBoat Browse-Packs enable everybody to browse through, comment on, and review your code without any IDE, platform, or build dependencies. It lets you share your codebase with ease and also view code complexity metrics like LoC and nesting.
4K Video Downloader is a video and audio downloader for YouTube, Vimeo, Facebook, Dailymotion, Metacafe, and other video-sharing services. It features video quality up to 4k resolution, FLV, MP4, and MKV support, extraction of audio to the MP3 format, and a "Smart Mode" for fast downloads.