Take-Two Interactive, Rockstar Games' parent company, recently released its earnings results for fiscal second quarter 2016. The latest shipment number for "GTA 5" was not revealed, but the company said the game is still enjoying "robust demand."

The open-world action-adventure crime game was first released for PS3 and Xbox 360 in 2013. A year later, it became available for PS4 and Xbox One. Generally, video games have short shelf lives. However, Take-Two Interactive was smart enough to not lay all its cards for its most prized creation.

"GTA 5" has just released for PC back in April 2015. The delay was meant to allow the vast majority of PC builds to catch up to the game's highly demanding system requirements. Releasing the game in 2013 might have disheartened low- to mid-level PC owners from buying the game. Evidenced by the recent earnings results, Take-Two's risk-taking surely paid off. For the record, the current "GTA 5" shipment number is quoted at 54 million copies, counting those that sold through June 30.

Micro-transaction sales from "Grand Theft Auto Online" also showed "strong growth" during the period. But according to Take-Two, it was the blockbuster launch of "NBA 2K16" that drove the company's remarkable second quarter revenue.

"Our second quarter results were anchored by the series record-breaking launch of NBA 2K16, along with ongoing demand for Grand Theft Auto 5 and strong growth in recurrent consumer spending," said Take-Two CEO Strauss Zelnick.

According to The Street, the company increased its fiscal 2016 earnings outlook to $1 to $1.15 per share, a slight albeit well-accepted improvement over its last earnings estimate of 75 cents to $1 per share.

Another bright spot for Take-Two was its sales from recurrent consumer spending. This includes the revenue from DLCs, virtual in-game currencies and online subscriptions. In totality, recurrent consumer spending revenue accounted for 20 percent of the company's total sales for the quarter.

Unsurprisingly, "Grand Theft Auto Online" was the top performer in that department. Zelnick said the online multiplayer consistently has eight million players per week. By comparison, "Battlefield 4" and "Battlefield Hardline" have a combined following of six million players per month.

The biggest takeaway from Take-Two' press release is that the company teased it's already working on a number of unannounced titles.

"Our worldwide development teams are working on numerous unannounced projects--including new intellectual properties and offerings from our established franchises. Our robust development pipeline extends years into the future, and promises to captivate audiences and set new benchmarks for creative excellence."

Has Take-Two subtly confirmed the development of "GTA 6"? Stay tuned to find out. In the meantime, click here to learn more about "GTA 6."