Sina (Nasdaq:SINA) announced April 21 that it has partnered with Beijing-based online game company Zhixinheng Network Technology to promote the latter's in-house developed 2.5D science fiction fantasy MMORPG Dispute Online. Sina users will be able to access the game without registering a new account. Dispute Online is scheduled to enter final-round alpha testing on April 28.

Zhixinheng Network Technology recently received $5 million from a U.S. venture capital firm for new game development, according to the announcement.