Jam City Inc. has agreed to go public in a reverse merger with a blank-check company, according to people with knowledge of the matter. As part of the transaction, Jam City is acquiring Montreal-based game publisher Ludia Inc., said the people, who asked not to be identified because the information is private. The two companies will combine with DPCM Capital, Inc. (NYSE:XPOA), the special purpose acquisition company set up by a former Uber Technologies Inc. executive, the people said. The combined company will have a valuation of $1.2 billion including debt, said the people. Representatives for Jam City, DPCM and Ludia declined to comment.