Sony may not exhibit at this year's Gamescom event in Cologne.
The company told Gamesindustry.biz it's still deciding whether it'll have an official public presence at trade show or not.
"We have to judge if it makes sense to exhibit at gamescom every year," said Sony Computer Entertainment Germany communications director Guido Alt.
"We are still negotiating with Koelnmesse. What I can say is that we did not sign a contract so far."
Nintendo hasn't exhibited at Gamescom for a number of years and has no plans to in 2013.
A record 275,000 people visited GamesCom 2011, underlining its status "as the world's largest trade fair for interactive entertainment", according to organiser Koelnmesse.