Nexon wants you to know that it has partnered with Valve to bring a couple of the former's older titles to Steam. The ubiquitous digital download platform now hosts both Atlantica Online and Combat Arms.
Atlantica is a turn-based MMORPG set on an alternate-reality earth that features "monsters ripped from history and lore." Combat Arms is a lobby-based first-person shooter known for having the widest selection of weapons in the genre.
Both titles are free-to-play and free to download via your Steam client.
[Source: Nexon press release]