Save big on Doom, The Witcher 3 and Fallout 4.

Steam's annual Summer Sale is now live, offering plenty of sales and daily deals between now and 4th July at 6pm UK time.

Some current highlights include:
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Doom for 23.99 (40 per cent off)
Darkest Dungeon for 11.39 (40 per cent off)
Payday 2 for 3.75 (75 per cent off)
This War of Mine for 3.75 (75 per cent off)
Arma X: Anniversary Edition for 5.99 (80 per cent off)
Arma 3 for 14.99 (50 per cent off)
Deus Ex Collection for 5.74 (75 per cent off)
The Witcher 3: Wild Hunt for 17.49 (50 per cent off)
Fallout 4 for 19.99 (50 per cent off)
Prison Architect for 4.99 (75 per cent off)
Hotline Miami 2 for 2.99 (75 per cent off)
Dark Souls: Prepare to Die Edition for 4.99 (75 per cent off)
Dark Souls 2: Scholar of the First Sin for 10.19 (66 per cent off)
Life is Strange Complete Season for 7.99 (50 per cent off)
Middle Earth: Shadow of Mordor for 7.49 (75 per cent off)
Wasteland 2: Director's Cut for 14.99 (50 per cent off)
Soma for 11.49 (50 per cent off)
Torchlight 2 for 2.99 (80 per cent off)