Two productions by National Theatre Wales have made it onto the shortlist for the 2013 James Tait Black Prize.
Five plays in total were whittled down from a selection of more than 180 for the award's first ever prize for drama, worth £10,000.
They are NTW's The Radicalisation Of Bradley Manning by Tim Price and In Water I'm Weightless by Kaite O'Reilly.
The NTW plays have been shortlisted alongside Lucy Prebble's play The Effect, The Hundred Flowers Project by Christopher Chen, and Foxfinder by Dawn King.
Organisers said the award would go to the play that displays "an original theatrical voice".
Written by Tim Price, and directed by the company's artistic director, John McGrath, The Radicalisation Of Bradley Manning is inspired by the young intelligence analyst accused of leaking huge amounts of classified information to the website Wikileaks while working for the US Army in Iraq.
Harry Ferrier in The Radicalisation Of Bradley Manning. Photo: Farrows Creative/National Theatre Wales
Manning was arrested in May 2010 and since then has been incarcerated in a military prison. He is currently on trial but if convicted could face a lifetime in jail.
The play was originally performed in schools across Wales in April 2012, and opened at Tasker Milward School, Haverfordwest, which Manning attended in his teens.
A live-stream of the production was watched by more than 8,000 people in 76 countries around the world.
The play is being revived as part of the Edinburgh Fringe and British Council Showcase this summer and will be staged at a school and streamed online simultaneously again.
The cast of The Radicalisation Of Bradley Manning. Photo: Farrows Creative/National Theatre Wales
Kaite O'Reilly's In Water I'm Weightless was a mixture of dance, physical theatre, live projections and monologues, performed exclusively by deaf and disabled actors.
It was staged in Cardiff and London in July and August 2012 and was also directed by John McGrath, forming one of the commissions for the London 2012 Cultural Olympiad Unlimited programme and was selected to be part of the London 2012 Festival.
It followed years of conversations with other disabled people, and was a series of monologues that showed how, just like able-bodied people, those living with disability lead complex and fulfilling lives and do not need pity and charity.
Nick Phillips and David Toole in In Water I'm Weightless. Photo: Farrows Creative/National Theatre Wales
John McGrath said: "We are thrilled and very proud to hear that, of the five plays on the shortlist for prestigious James Tait Black Award, two were commissioned and produced by National Theatre Wales.
"This new international award focuses on plays that show an original voice and which have made a unique contribution to theatre.
"This is exactly the kind of writing that National Theatre Wales has been aiming to encourage.
"It is extraordinary that on a shortlist including plays from as far afield as San Francisco, and produced by venues as established as London's National Theatre, National Theatre Wales' work, and writers from Wales, have been given such prominence.
"Huge congratulations go to Kaite O'Reilly and Tim Price for being shortlisted."
The judging panel for the new drama award includes representatives from Edinburgh University, the National Theatre of Scotland and Edinburgh's Traverse Theatre, where the winning play will be read on 5 August.
