Barrow-wights have appeared in several games based on Tolkien's writings:

He was here before the Kings and the graves and the Barrow-wights.

You must forgive them all; for though their hearts are faithful, to face fear of Barrow-wights is not what they were made for.

The Barrow-wights were now sent there by the Witch-king.

An isolated note says: 'What of the sword of the Barrow-wights?

Merry was unarmed (except for a small pocket-knife) until the encounter with the barrow-wights.

After being waylaid by the barrow-wights, he lost his lighter, summer-weight clothes and was left in a burial shift.

Ringwraiths and Barrow-wights are also counted among the Dead but are distinct in that they have physical form.

Barrow-wights walked in the hollow places with a clink of rings on cold fingers, and gold chains in the wind.

A Barrow-wight had taken him, and he was probably already under the dreadful spells of the Barrow-wights about which whispered tales spoke.

Barrow-wights appear in other media:

Barrow-wights related to Black-riders.

'I'll give your otter-fell to Barrow-wights.

Adventure with Willowman and Barrow-wights.

Along the way Frodo encounters Barrow-Wights, ghost-like creatures that claw at him.

This proves fortunate, as the four encounter Barrow-wights during the following chapter, "Fog on the Barrow-downs".

Are Black-riders actually horsed Barrow-wights?

The wight is a deadly undead creature inspired by the barrow-wights in The Lord of the Rings.

After saving them from the Barrow-wights, Tom gives each hobbit a long dagger taken from the treasure in the barrow.

Even in the Shire the rumour of the Barrow-wights of the Barrow-downs beyond the Forest had been heard.

Other, Darker, offspring the Old Magic bears: boogels, barrow-wights, volies, and grossmiths.

He manas them of barrow-wights; tells them a song to sing if the barrow- wights frighten them or A cold day.

'The Barrow-wights I knew of,' he said, 'for they are closely akin to the Riders; and I marvel at your escape from them.

After leaving Bombadil, they are caught in fog on the Barrow Downs by Barrow-wights and are entranced under a spell.

In the 1850s King Araval of Arthedain tried to recolonize Cardolan, but this failed because of the Barrow-wights.