diff --git a/gamedir/Data-1.13/Interface/BACKPACK_BUTTONS.sti b/gamedir/Data-1.13/Interface/BACKPACK_BUTTONS.sti
new file mode 100644
index 000000000..08c4ff44c
Binary files /dev/null and b/gamedir/Data-1.13/Interface/BACKPACK_BUTTONS.sti differ
diff --git a/gamedir/Data-1.13/Interface/EXTRA_INVENTORY.STI b/gamedir/Data-1.13/Interface/EXTRA_INVENTORY.STI
new file mode 100644
index 000000000..1d5a36872
Binary files /dev/null and b/gamedir/Data-1.13/Interface/EXTRA_INVENTORY.STI differ
diff --git a/gamedir/Data-1.13/Interface/INFO_BIL.STI b/gamedir/Data-1.13/Interface/INFO_BIL.STI
new file mode 100644
index 000000000..940914696
Binary files /dev/null and b/gamedir/Data-1.13/Interface/INFO_BIL.STI differ
diff --git a/gamedir/Data-1.13/Interface/Interface.stp b/gamedir/Data-1.13/Interface/Interface.stp
new file mode 100644
index 000000000..a0a0bedb7
Binary files /dev/null and b/gamedir/Data-1.13/Interface/Interface.stp differ
diff --git a/gamedir/Data-1.13/Interface/MAP_INV_2ND_GUN_COVER.sti b/gamedir/Data-1.13/Interface/MAP_INV_2ND_GUN_COVER.sti
new file mode 100644
index 000000000..546517a01
Binary files /dev/null and b/gamedir/Data-1.13/Interface/MAP_INV_2ND_GUN_COVER.sti differ
diff --git a/gamedir/Data-1.13/Interface/SECONDARY_GUN_HIDDEN.STI b/gamedir/Data-1.13/Interface/SECONDARY_GUN_HIDDEN.STI
new file mode 100644
index 000000000..8fd406929
Binary files /dev/null and b/gamedir/Data-1.13/Interface/SECONDARY_GUN_HIDDEN.STI differ