The 24 backgrounds: the fixed scenery a room lists before its objects -- walls, arches, the forest's trees, portcullises, the wizard and his cauldron. Unlike a template, a background carries its own coordinates, so it always stands in the same place; next_bg_obj_sprite copies each of its pieces into an object record as it is. Each is drawn here by the game, on its own in an empty room of the size it belongs to.

0: arch N -- arch_n: Background 0: arch in the north side

PiecexyzSizeHeightFlags
arch piece $02$8D$C4$803 by 540$50
arch piece $03$73$C4$803 by 540$50

In 63 rooms: $00, $02, $04, $0D, $0F, $10, $12, $14, $18, $1D, $1F, $20, $24, $27, $28, $2F, $30, $34, $37, $38, $44, $47, $48, $54, $57, $58, $64, $67, $68, $6A, $77, $78, $83, $87, $88, $8B, $8F, $93, $97, $98, $9B, $9F, $A3, $A7, $AA, $AB, $AF, $B3, $B7, $BF, $C3, $C7, $CF, $D0, $D2, $D3, $DD, $DF, $E0, $E2, $E3, $ED, $EF.

1: arch E -- arch_e: Background 1: arch in the east side

PiecexyzSizeHeightFlags
arch piece $02$C4$73$805 by 340$10
arch piece $03$C4$8D$805 by 340$10

In 40 rooms: $00, $01, $02, $03, $0D, $0E, $20, $2E, $41, $42, $43, $44, $45, $46, $6A, $6C, $74, $75, $77, $78, $79, $83, $84, $87, $88, $89, $8A, $8B, $8C, $8D, $AA, $B3, $BA, $D0, $D1, $DE, $F1, $F2, $FD, $FE.

2: arch S -- arch_s: Background 2: arch in the south side

PiecexyzSizeHeightFlags
arch piece $02$8D$3B$803 by 540$50
arch piece $03$73$3B$803 by 540$50

In 46 rooms: $12, $18, $1F, $22, $24, $2D, $2F, $30, $34, $37, $44, $47, $54, $57, $67, $68, $74, $77, $78, $7A, $87, $88, $93, $97, $98, $9F, $A7, $A8, $AB, $B3, $B7, $BA, $BB, $C3, $CF, $D3, $DF, $E0, $E2, $E3, $ED, $EF, $F2, $F3, $FD, $FF.

3: arch W -- arch_w: Background 3: arch in the west side

PiecexyzSizeHeightFlags
arch piece $02$3B$73$805 by 340$10
arch piece $03$3B$8D$805 by 340$10

In 50 rooms: $01, $02, $03, $04, $0D, $0E, $0F, $21, $22, $2E, $2F, $41, $42, $43, $44, $45, $46, $47, $6B, $6C, $75, $76, $77, $78, $79, $7A, $84, $85, $86, $87, $88, $89, $8A, $8B, $8C, $8D, $8E, $8F, $AB, $B4, $BB, $D1, $D2, $DE, $DF, $F1, $F2, $F3, $FE, $FF.

4: forest exit N -- tree_arch_n: Background 4: forest exit, north

PiecexyzSizeHeightFlags
tree trunk $04$8D$C4$803 by 540$50
tree trunk $05$73$C4$803 by 540$50

In 13 rooms: $08, $3F, $4F, $5E, $5F, $D6, $D7, $D8, $D9, $E6, $E7, $E8, $E9.

5: forest exit E -- tree_arch_e: Background 5: forest exit, east

PiecexyzSizeHeightFlags
tree trunk $04$C4$73$805 by 340$10
tree trunk $05$C4$8D$805 by 340$10

In 17 rooms: $08, $09, $0A, $0B, $0C, $5E, $6D, $6E, $D6, $D7, $D8, $E6, $E7, $E8, $F6, $F7, $F8.

6: forest exit S -- tree_arch_s: Background 6: forest exit, south

PiecexyzSizeHeightFlags
tree trunk $04$8D$3B$803 by 540$50
tree trunk $05$73$3B$803 by 540$50

In 14 rooms: $3F, $4F, $5F, $6E, $6F, $D7, $E6, $E7, $E8, $E9, $F6, $F7, $F8, $F9.

7: forest exit W -- tree_arch_w: Background 7: forest exit, west

PiecexyzSizeHeightFlags
tree trunk $04$3B$73$805 by 340$10
tree trunk $05$3B$8D$805 by 340$10

In 17 rooms: $09, $0A, $0B, $0C, $5F, $6D, $6E, $6F, $D7, $D8, $D9, $E7, $E8, $E9, $F7, $F8, $F9.

8: portcullis N -- gate_n: Background 8: portcullis in the north doorway

PiecexyzSizeHeightFlags
portcullis $08$80$BE$A012 by 132$50

In 1 room: $CF.

9: portcullis E -- gate_e: Background 9: portcullis in the east doorway

PiecexyzSizeHeightFlags
portcullis $08$BE$80$A01 by 1232$10

In 2 rooms: $09, $F1.

10: portcullis S -- gate_s: Background 10: portcullis in the south doorway

PiecexyzSizeHeightFlags
portcullis $08$80$41$A012 by 132$50

In 1 room: $CF.

11: portcullis W -- gate_w: Background 11: portcullis in the west doorway

PiecexyzSizeHeightFlags
portcullis $08$41$80$A01 by 1232$10

In 2 rooms: $09, $F1.

12: walls (square room) -- walls_square: Background 12: walls of a square room

PiecexyzSizeHeightFlags
wall column $0D$3F$B8$800 by 840$10
wall column $0E$47$C0$808 by 040$10
wall end $0F$3F$49$800 by 844$10
wall end $0F$B8$C0$808 by 044$50
wall end $0F$3F$49$AC0 by 844$10
wall end $0F$B8$C0$AC8 by 044$50
wall slab $0A$5C$C0$8020 by 020$50
wall slab $0B$3F$5C$980 by 1220$10
wall slab $0C$3F$A0$980 by 1212$10
wall slab $0B$A4$C0$9812 by 020$50
wall slab $0A$3F$6D$B10 by 2020$10
wall slab $0C$60$C0$A012 by 012$50
wall slab $0A$90$C0$B020 by 020$50

In 46 rooms: $00, $02, $04, $0D, $0F, $20, $22, $24, $27, $2D, $2F, $40, $42, $44, $45, $47, $6A, $74, $77, $78, $7A, $83, $87, $88, $8B, $8D, $8F, $A7, $A8, $AA, $AB, $B3, $B4, $BA, $BB, $BF, $C7, $D0, $D2, $DD, $DF, $F0, $F2, $F3, $FD, $FF.

13: walls (room narrow in y) -- walls_narrow_y: Background 13: walls of a room narrow in y

PiecexyzSizeHeightFlags
wall column $0D$3F$98$800 by 840$10
wall column $0E$47$A0$808 by 040$10
wall end $0F$3F$63$800 by 844$10
wall end $0F$B8$A0$808 by 044$50
wall end $0F$3F$63$AC0 by 844$10
wall end $0F$B8$A0$AC8 by 044$50
wall column $0D$3F$98$A80 by 840$10
wall column $0E$47$A0$A88 by 040$10
wall end $0F$B8$A0$D08 by 044$50
wall slab $0A$80$A0$8020 by 020$50
wall slab $0A$3F$7E$B00 by 2020$10
wall slab $0B$60$A0$9012 by 020$50
wall slab $0A$60$A0$B820 by 020$50
wall slab $0C$A0$A0$B012 by 012$50

In 24 rooms: $01, $03, $0E, $21, $2E, $41, $43, $46, $6B, $6C, $75, $76, $79, $84, $85, $86, $89, $8A, $8C, $8E, $D1, $DE, $F1, $FE.

14: walls (room narrow in x) -- walls_narrow_x: Background 14: walls of a room narrow in x

PiecexyzSizeHeightFlags
wall column $0D$5F$B8$800 by 840$10
wall column $0E$67$C0$808 by 040$10
wall end $0F$5F$48$800 by 844$10
wall end $0F$9D$C0$808 by 044$50
wall column $0D$5F$B8$A80 by 840$10
wall column $0E$67$C0$A88 by 040$10
wall end $0F$5F$48$AC0 by 844$10
wall end $0F$9D$C0$AC8 by 044$50
wall end $0F$5F$48$D00 by 844$10
wall slab $0A$5F$90$800 by 2020$10
wall slab $0A$84$C0$B020 by 020$50
wall slab $0B$5F$60$900 by 1220$10
wall slab $0A$5F$68$B80 by 2020$10
wall slab $0C$5F$A0$B00 by 1212$10

In 34 rooms: $10, $12, $14, $18, $1D, $1F, $28, $30, $34, $37, $38, $48, $54, $57, $58, $64, $67, $68, $93, $97, $98, $9B, $9F, $A3, $AF, $B7, $C3, $CF, $D3, $E0, $E2, $E3, $ED, $EF.

15: forest walls -- tree_walls: Background 15: the trees round a forest room

PiecexyzSizeHeightFlags
tree $80$3F$49$800 by 844$10
tree $81$3F$58$800 by 844$10
tree $82$3F$68$800 by 844$10
tree $80$3F$98$800 by 844$10
tree $81$3F$A8$800 by 844$10
tree $82$3F$B8$800 by 844$10
tree $80$48$C0$808 by 044$50
tree $81$58$C0$808 by 044$50
tree $82$68$C0$808 by 044$50
tree $80$98$C0$808 by 044$50
tree $81$A8$C0$808 by 044$50
tree $82$B8$C0$808 by 044$50

In 24 rooms: $08, $09, $0A, $0B, $0C, $3F, $4F, $5E, $5F, $6D, $6E, $6F, $D6, $D7, $D8, $D9, $E6, $E7, $E8, $E9, $F6, $F7, $F8, $F9.

16: trees closing the W gap -- tree_filler_w: Background 16: trees closing the west gap

PiecexyzSizeHeightFlags
tree $80$3F$78$800 by 844$10
tree $81$3F$88$800 by 844$10

In 7 rooms: $08, $3F, $4F, $5E, $D6, $E6, $F6.

17: trees closing the N gap -- tree_filler_n: Background 17: trees closing the north gap

PiecexyzSizeHeightFlags
tree $80$78$C0$808 by 044$50
tree $81$88$C0$808 by 044$50

In 11 rooms: $09, $0A, $0B, $0C, $6D, $6E, $6F, $F6, $F7, $F8, $F9.

18: the wizard -- wizard: Background 18: the wizard

PiecexyzSizeHeightFlags
wizard's body $9E$98$68$805 by 524$10
legs $90$A0$60$805 by 50$12

In 1 room: $88.

19: the cauldron -- cauldron: Background 19: the cauldron

PiecexyzSizeHeightFlags
cauldron $8D$80$80$8010 by 1024$10
cauldron's top $8E$80$88$800 by 00$12

In 1 room: $88.

20: high arch E -- high_arch_e: Background 20: high arch in the east side

PiecexyzSizeHeightFlags
arch piece $02$C4$73$B05 by 340$10
arch piece $03$C4$8D$B05 by 340$10

In 10 rooms: $21, $2D, $40, $6B, $76, $85, $86, $8E, $DD, $F0.

21: high arch S -- high_arch_s: Background 21: high arch in the south side

PiecexyzSizeHeightFlags
arch piece $02$8D$3B$B03 by 540$50
arch piece $03$73$3B$B03 by 540$50

In 16 rooms: $10, $14, $1D, $20, $28, $38, $40, $48, $58, $64, $9B, $A3, $AF, $BF, $C7, $F0.

22: step to high arch E -- high_arch_e_base: Background 22: step up to the high east arch

PiecexyzSizeHeightFlags
block $07$C8$78$A48 by 812$10
block $07$C8$88$A48 by 812$10

In 10 rooms: $21, $2D, $40, $6B, $76, $85, $86, $8E, $DD, $F0.

23: step to high arch S -- high_arch_s_base: Background 23: step up to the high south arch

PiecexyzSizeHeightFlags
block $07$78$38$A48 by 812$10
block $07$88$38$A48 by 812$10

In 16 rooms: $10, $14, $1D, $20, $28, $38, $40, $48, $58, $64, $9B, $A3, $AF, $BF, $C7, $F0.