Creative Assembly have officially announced that Total War: WARHAMMER will feature the Assembly Kit and Steam Workshop support on launch, which is set for May 24.
From the email sent out, it was stated that the game would originally not benefit from mod support, but Creative Assembly and Games Workshop have since been working to make this feature a reality.
Upon launch, players will be able to access CA's Assembly Kit which will give them the tools to create mods and upload them to the Steam Workshop. It is also stated that further functionality will be added to the kit later in the year, including battle map editing.
The DotA 2 team at Valve also announced last week they will be accepting submissions for new treasure with the Total War: WARHAMMER theme.