Ubisoft’s post-apocalyptic event adventure game I Am Alive will be released on PC on September 13th, the publisher announced today, promising improvements for the game released on consoles earlier this year.

I Am Alive‘s Windows PC release will feature improved visuals, higher resolution options, and two new modes: “Easy” mode, which offers infinite retries and “a smoother introduction,” and “Replay” mode, which lets completionists revisit previously completed levels to find items and secrets they may have missed the first time.

The Ubisoft Shanghai-developed adventure takes place in a decimated city after a massive disaster known simply as “The Event.” Players must deal with limited ammunition and supplies as they combat fellow survivors on a journey to find the main character’s missing wife and daughter. I Am Alive was first released on Xbox Live Arcade in March, then on PlayStation Network in April.

I Am Alive for PC will be sold for $14.99 on Steam, Ubishop, and other digital retailers.

Widely spread — but still unconfirmed — reports of mass layoffs at cloud-based gaming company OnLive are reportedly tied to an acquisition of the three-year-old company by an unknown third party.

According to a report from alleged former OnLive employees, at least 50 percent of the company’s staff was let go this morning, reports Engadget. Staffers were reportedly told that OnLive’s new owner had already sent offer letters to remaining employees. An ex-OnLive staffer estimates that OnLive going forward could exist as a skeleton crew of a little as 20 employees.

OnLive employee profiles on LinkedIn have been dropping throughout the day, with at least 20 members updating their status as former employees of the company.

IDG News correspondent Martyn Williams has been stationed outside OnLive headquarters today, reporting that employees have been seen moving out of the company’s offices.

In the last 20mins have seen three people walk out of #OnLive with leaving boxes. Still unclear what’s happening inside twitter.com/martyn_william…

— Martyn Williams (@martyn_williams) August 17, 2012

A report on TechCrunch says that OnLive’s supposed buyer acquired the company for its intellectual property, branding, and patents. The firings were also reportedly a move designed to “reduce the company’s liability.”

GamePolitics offers an ex-employee’s rundown of the all-hands meeting lead by OnLive founder and CEO Steve Perlman who reportedly told employees that the company was entering a “variation of bankruptcy which is valid in California” and that “the company as of this moment does not exist,” “portions of it are being acquired by a brand new entity” and “all of your options are gone.”

That same anonymous ex-employee tells GamePolitics “money was getting tight.”

“There were signs of it because budgets had been slashed and there were very long holds on getting business terms signed off on… but the expectation was ‘oh Steve’s going to go and get another round of funding.’ There were a few people hoping for the acquisition because that’s really the end game, but if you were reasonably smart you knew that the likelihood of that was pretty low.”

OnLive reps have not yet provided official clarification on the matter of rumored layoffs, only telling Polygon “the OnLive service is not shutting down.”

Update: According to our own Sean Hollister, who is at the OnLive offices now, a steady stream of employees is emerging from the building, many carrying single white sheets of paper. We haven’t been able to talk to any of them, but Martyn Williams says that OnLive has promised a statement soon.

Update 2: Sean Hollister has been told by a company spokesperson to come inside the OnLive building to wait for a statement. Meanwhile, employees have ceased exiting through the main entrance, and our now being instructed to venture out through the garage instead.

Two senior staffers at BioShock developer Irrational Games have left the company: art director Nate Wells, a 13-year veteran of the Boston area studio, and director of product development Tim Gerritsen. The two were part of the team developing next year’s BioShock Infinite.

Wells’ credits include the original BioShock, Freedom Force, and System Shock 2. Gamasutra‘s report on the departures indicates that Wells may have found a new home at Uncharted series developer Naughty Dog.

Gerritsen, previously at Rune and Prey developer Human Head Studios, joined Irrational in 2010, the year BioShock Infinite was announced. In his LinkedIn profile, Gerritsen writes he “oversaw the product development division of the company, and directly managed the content creators for BioShock Infinite” during his tenure at Irrational.

Last year, noteworthy Irrational Games staffers Steve Gaynor and Chris Remo left the studio. Gaynor, who worked at BioShock 2 developer 2K Marin, wrote and designed the game’s “Minerva’s Den” expansion before joining Irrational. Gaynor has since co-founded The Fullbright Company. Remo served as community manager and producer at Irrational before leaving for Double Fine Productions and Idle Thumbs. Both were with the studio for about a year.

In May, Irrational creative director Ken Levine announced BioShock Infinite had been pushed to February 2013, also revealing that the game would not make appearances at E3 or Gamescom.

On Twitter today, Levine said that Scott Sinclair, art director of the original BioShock, was “back in the art director’s chair for Infinite to bring it home.” Added Levine, “Can’t wait to show you what’s cooking.”

Publisher Take-Two Interactive said in its most recent quarterly statement that BioShock Infinite was still scheduled for a February 26th, 2013 release on PC, Xbox 360, and PlayStation 3.