Simply Chess | Mythic Sword

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

The classic board game comes to Steam! Everything you need in a chess game. If you are a chess enthusiast or someone who just likes to play a game now and again, this is what you've been looking for. This is Simply Chess.

Play it against friends whether they're on on Windows, Mac, & Linux.

Features:

Play locally or online.
Play against the computer – World class "Stockfish" AI with 100 difficulty levels.
Includes "hot-seat"/"pass-n-play" mode for multiplayer using only one computer.
Asynchronous play - you can play even when your opponent is offline.
Easily switch between full 3D with camera-control & a 2D graphics mode
Full controller and “Steam Big Picture” support
Switch seamlessly between playing with mouse/keyboard and gamepad.
Elo Ratings for online games – ranked on a Steam Leaderboard
Steam Trading Cards, Badges, Backgrounds & Emoticons
Dozens of Steam Stats & Achievements.
Steam version has no added DRM and can run everything except the online play & Steam-specific bonuses (Steam Achievements, Steam Leaderboards, etc.), without any internet connection and/or without Steam installed.