We have previously mentioned OpenXcom on several occasions before, but now the massive UFO: Enemy Unknown engine reimplementation project finally hit the long-awaited 1.0 mark, and they decided to celebrate by releasing this lovely trailer that sums up quite well the insane amount of detail and improvement put into the project over the course of 4 years. I'll let it do justice by itself, but not without thanking all the contributors for raising one of the most acclaimed DOS-era strategy classics from the stagnating swamps of buggy unsupported legacy releases and platform incompatibility.
On a final note, the engine is, of course, free-as-in-freedom, though it relies on original game data of proprietary nature. You can download OpenXcom here, and buy an affordable digital copy of the original game on Steam, or somewhere around the web.
Code License: GPLv3
Assets License: Relies on original proprietary data files. All new original art assets included in the OXC package available under CC-BY-SA