Bandai Namco is opening rights to seventeen of its older IPs to Japanese developers (they're considering later opening it up to foreign and independent developers as well), hoping to revive interest in the franchises. Developers will be able to use or alter the characters, stories, and music for these IPs as they please beginning in April (though Bandai Namco reserves the right to deny the use of the IPs in games they deem offensive). The IPs are as follows: Pac-Man Xevious Galaxian The Tower of Druaga Tower of Babel Dragon Buster Wonder Momo Galaga Battle City Valkyrie no Bōken (The Adventure of Valkyrie) Yōkai Dōchūki (Shadow Land) Wagan Land Dig Dug Star Luster Sky Kid Genpei Tōma Den More details here.