You read the title right.
75% off of all 40k-related THQ titles.
That means Space Marine is £4.99, the DoW II Complete Pack (vDoW II, Chaos Rising, Retribution) is £7.49 (individually they're also £4.99, so a great buy there if you're on the verge), all the Retribution DLC (including the TLS Tau Commander for a measly £1.62) . . .
. . . and even DoW I Gold Edition (£2.49), Dark Crusade and Soulstorm (both £2.49)
Tempted to get Gold Edition and Dark Crusade myself, as I lack physical copies these days.