238:
294:
249:
1796:
713:
41:
267:
port, while some North
American versions also featured a phone-line port for dial-up connection. The newer slimline versions, however, have an Ethernet port (and in some early North American models, a phone-line port) built into them, making the Network Adaptor unnecessary and hard drive use nearly
190:
servers. However, later PS2 online games required the console to be authorized through Sony's
Dynamic Network Authentication System (DNAS) before connecting to the server. Unofficial servers also exist which could be connected by setting up the DNS settings to connect to an unofficial DNS server.
271:
Playing online games requires that users set up the system's network connection configuration, which is saved to a memory card. This can be done with the
Network Startup Disc that came with the network adapter or using one of the many games that had the utility built into them, such as
35:
29:
200:, was ultimately shut down on March 31, 2016, with the DNAS following it a couple of days later on April 4, indirectly shutting down several remaining unofficial servers, with the exception of ones that support non-DNAS PS2 titles such as
276:, to set up the network settings. The new slimline PlayStation 2 came with a disc in the box by default. The last version of the disk was Network Startup Disc 5.0, which was included with the newer SCPH-90004 model released in 2009.
333:
logo on their cover. North
American games feature an "Online" icon in the lower right corner of the cover; on games that do not support dial-up connectivity, "broadband only" is also found on the logo.
1825:
263:
For the original models (non-Slim) of the PlayStation 2 console, a network adapter was needed to play online and use a hard drive. All versions of the
Network Adaptor provide an
1001:
1832:
1006:
1287:
2015:
1183:
1157:
1121:
1090:
1039:
996:
622:
212:. Despite the DNAS shutdown, several fan created servers still exist; most require a DNAS workaround to connect, with some exceptions such as
1642:
1277:
429:
1198:
986:
459:
2020:
1256:
1251:
1246:
1236:
1231:
1226:
1221:
1216:
1126:
1049:
1649:
503:
1635:
866:
849:
832:
544:
1136:
1116:
1111:
1095:
1085:
1080:
1075:
1070:
1054:
1034:
1029:
757:
617:
612:
257:
A PS2 Network
Adaptor shown by itself (top) and inserted to a console (North American Dial-up/LAN/broadband version; bottom)
1193:
904:
815:
632:
2025:
1818:
1013:
976:
971:
1628:
1621:
1241:
1178:
1044:
627:
364:
288:
1350:
1272:
916:
566:
346:
allow users to achieve online play for some PS2 games by using a network configuration that simulates a worldwide
1400:
1343:
1208:
571:
160:
1944:
777:
523:
321:, released in August of the same year, was one of the first video games that allowed voice chat on a console.
159:
The service was launched in July 2001 in Japan, August 2002 in North
America, and in June 2003 in Europe. On "
1949:
1405:
1162:
871:
854:
163:" models, a network adapter is integrated into the hardware. Some games also allowed online gameplay using a
141:
1878:
1674:
1131:
934:
578:
384:
1984:
1525:
1443:
1303:
1152:
640:
556:
496:
220:
208:
51:
342:
Over time, most game servers have been shut down. However, computer programs such as XBSlink, SVDL and
1974:
1939:
1530:
1520:
1188:
750:
588:
137:
1708:
1681:
1308:
991:
981:
684:
645:
191:
Most recent PS2 online games have been developed to exclusively support broadband internet access.
1656:
1582:
673:
437:
105:
2030:
1989:
1898:
1799:
1515:
1448:
1433:
1313:
716:
650:
489:
273:
202:
805:
705:
463:
317:
187:
186:, online multiplayer on the PS2 was the responsibility of the game publisher and was run on
1873:
1687:
1510:
899:
844:
827:
743:
539:
237:
136:
capabilities. Games that enable the feature provide free online play through the use of a
8:
1908:
1722:
1338:
944:
782:
359:
306:
1557:
1494:
1370:
810:
347:
168:
123:
80:
293:
268:
impossible, as well as ruling out any need to keep the network adapter in production.
1888:
1438:
1385:
1380:
407:
171:
play by connecting two network adapters/slimline consoles together directly with an
1969:
1776:
1750:
1745:
1463:
1365:
911:
311:
302:
279:
As of
December 31, 2012, the servers for most games have all since been shut down.
196:
1918:
1913:
1740:
1735:
1730:
1550:
1489:
1390:
1375:
1360:
1545:
1282:
939:
549:
214:
2009:
1810:
1318:
894:
878:
861:
839:
822:
723:
655:
512:
248:
144:. Since the service has no official name, it is sometimes referred as either
119:
85:
315:
which allowed connections between the
Playstation 2 and personal computers.
1923:
1868:
1964:
1883:
1863:
1781:
1703:
766:
128:
1903:
1858:
1755:
1577:
1540:
1453:
1355:
678:
343:
183:
40:
1959:
264:
172:
1954:
1853:
1771:
1592:
1458:
1410:
179:
164:
100:
481:
1587:
1535:
1484:
1479:
596:
309:
between two competing video game consoles, followed in 2002 by
133:
95:
Defunct (active only via fan-made servers and DNAS workarounds)
735:
1994:
1893:
690:
34:
28:
1597:
460:"Square Enix U.S.A. announces details for Final Fantasy XI"
114:
329:PAL games that supported online gaming display a
2007:
178:Instead of having a unified online service like
194:The last official online server, which was for
1840:
1826:
751:
497:
167:connection (not available on all models), or
430:"URGENT! DNAS SHUTDOWN – PS2 Online Gaming"
1833:
1819:
964:
758:
744:
504:
490:
175:cable or through the same router network.
1643:PlayStation Official Magazine – Australia
297:Slim model with network adapter embedded
292:
2016:Internet properties established in 2001
1650:Official PlayStation Magazine (Ireland)
405:
305:was the first ever video game to offer
2008:
1814:
739:
485:
387:. theregister.co.uk. August 15, 2002
13:
1980:PlayStation 2 online functionality
1636:PlayStation Official Magazine – UK
1629:PlayStation: The Official Magazine
1622:Official U.S. PlayStation Magazine
365:List of PlayStation 2 online games
289:List of PlayStation 2 online games
14:
2042:
511:
406:Hermida, Alfred (June 13, 2003).
1795:
1794:
712:
711:
385:"Sony confirms PS2 online plans"
337:
324:
247:
236:
75:March 2016 (third party support)
39:
33:
27:
18:Online service for PlayStation 2
2021:Multiplayer video game services
1401:PlayStation Broadband Navigator
765:
572:PlayStation Broadband Navigator
408:"Taking the PlayStation online"
73:August 2012 (developer support)
1945:Dreamcast online functionality
778:Sony Interactive Entertainment
524:Sony Interactive Entertainment
452:
422:
399:
377:
1:
1950:GameCube online functionality
370:
142:PlayStation 2 Network Adaptor
138:broadband internet connection
7:
1985:Total Entertainment Network
1526:PlayStation 2 Expansion Bay
353:
221:Need For Speed: Underground
52:Sony Computer Entertainment
10:
2047:
2026:Online video game networks
1841:Online video game networks
286:
227:
1975:Nintendo Wi-Fi Connection
1932:
1846:
1790:
1782:Sony Ericsson Xperia Play
1764:
1721:
1696:
1666:
1613:
1606:
1570:
1503:
1472:
1426:
1419:
1331:
1296:
1265:
1207:
1171:
1145:
1104:
1063:
1022:
957:
927:
887:
798:
791:
773:
699:
666:
605:
587:
532:
519:
99:
91:
79:
69:
57:
47:
26:
1879:Games for Windows – Live
282:
209:Tony Hawk's Pro Skater 3
1657:PlayStation Underground
674:Linux for PlayStation 2
1990:World Opponent Network
1899:Nintendo Switch Online
1434:PlayStation controller
1278:TurboGrafx-16 Classics
633:Compatible with EyeToy
298:
274:Resident Evil Outbreak
203:Tribes: Aerial Assault
1688:PlayStation marketing
1454:DualShock / DualSense
318:SOCOM U.S. Navy SEALs
296:
1874:Epic Online Services
900:PlayStation Portable
562:Online functionality
1909:PlayStation Network
1339:PlayStation Network
945:PlayStation Classic
783:PlayStation Studios
434:ps2onlinegaming.com
360:PlayStation Network
307:cross-platform play
63:NA: August 27, 2002
23:
1558:PlayStation Portal
1495:PlayStation Camera
1371:PlayStation Mobile
299:
150:PS2 Network Gaming
124:video game console
113:Selected games on
21:
2003:
2002:
1889:Google Play Games
1808:
1807:
1756:Konami System 573
1717:
1716:
1566:
1565:
1439:PlayStation Mouse
1386:PlayStation Video
1381:PlayStation Store
1327:
1326:
953:
952:
733:
732:
440:on April 25, 2016
301:Released in 2001
111:
110:
2038:
1970:Nintendo Network
1835:
1828:
1821:
1812:
1811:
1798:
1797:
1777:Super NES CD-ROM
1611:
1610:
1464:PlayStation Move
1424:
1423:
1366:PlayStation Home
962:
961:
912:PlayStation Vita
796:
795:
760:
753:
746:
737:
736:
715:
714:
506:
499:
492:
483:
482:
476:
475:
473:
471:
466:on April 9, 2016
462:. Archived from
456:
450:
449:
447:
445:
436:. Archived from
426:
420:
419:
417:
415:
403:
397:
396:
394:
392:
381:
312:Final Fantasy XI
303:Capcom vs. SNK 2
251:
240:
197:Final Fantasy XI
146:PS2 Network Play
43:
37:
31:
24:
20:
2046:
2045:
2041:
2040:
2039:
2037:
2036:
2035:
2006:
2005:
2004:
1999:
1940:Central Station
1928:
1919:Ubisoft Connect
1842:
1839:
1809:
1804:
1786:
1760:
1731:Namco System 11
1713:
1692:
1662:
1602:
1562:
1531:PS3 accessories
1521:PS2 accessories
1499:
1490:PlayStation Eye
1468:
1444:Analog Joystick
1415:
1391:PlayStation Vue
1376:PlayStation Now
1361:PlayStation App
1351:Central Station
1323:
1292:
1261:
1203:
1167:
1141:
1100:
1059:
1018:
949:
923:
917:System software
905:System software
883:
872:System software
855:System software
787:
769:
764:
734:
729:
695:
662:
601:
583:
567:Central Station
528:
515:
510:
480:
479:
469:
467:
458:
457:
453:
443:
441:
428:
427:
423:
413:
411:
404:
400:
390:
388:
383:
382:
378:
373:
356:
340:
327:
291:
285:
261:
260:
259:
258:
254:
253:
252:
243:
242:
241:
230:
74:
64:
62:
19:
12:
11:
5:
2044:
2034:
2033:
2028:
2023:
2018:
2001:
2000:
1998:
1997:
1992:
1987:
1982:
1977:
1972:
1967:
1962:
1957:
1952:
1947:
1942:
1936:
1934:
1930:
1929:
1927:
1926:
1921:
1916:
1911:
1906:
1901:
1896:
1891:
1886:
1881:
1876:
1871:
1866:
1861:
1856:
1850:
1848:
1844:
1843:
1838:
1837:
1830:
1823:
1815:
1806:
1805:
1803:
1802:
1791:
1788:
1787:
1785:
1784:
1779:
1774:
1768:
1766:
1762:
1761:
1759:
1758:
1753:
1748:
1743:
1738:
1733:
1727:
1725:
1719:
1718:
1715:
1714:
1712:
1711:
1706:
1700:
1698:
1694:
1693:
1691:
1690:
1685:
1678:
1670:
1668:
1667:Advertisements
1664:
1663:
1661:
1660:
1653:
1646:
1639:
1632:
1625:
1617:
1615:
1608:
1604:
1603:
1601:
1600:
1595:
1590:
1585:
1580:
1574:
1572:
1568:
1567:
1564:
1563:
1561:
1560:
1555:
1554:
1553:
1546:PlayStation VR
1543:
1538:
1533:
1528:
1523:
1518:
1513:
1507:
1505:
1501:
1500:
1498:
1497:
1492:
1487:
1482:
1476:
1474:
1470:
1469:
1467:
1466:
1461:
1456:
1451:
1446:
1441:
1436:
1430:
1428:
1421:
1417:
1416:
1414:
1413:
1408:
1403:
1398:
1393:
1388:
1383:
1378:
1373:
1368:
1363:
1358:
1353:
1348:
1347:
1346:
1335:
1333:
1329:
1328:
1325:
1324:
1322:
1321:
1316:
1311:
1306:
1300:
1298:
1294:
1293:
1291:
1290:
1285:
1283:NEOGEO Station
1280:
1275:
1269:
1267:
1263:
1262:
1260:
1259:
1254:
1249:
1244:
1239:
1234:
1229:
1224:
1219:
1213:
1211:
1205:
1204:
1202:
1201:
1196:
1191:
1186:
1181:
1175:
1173:
1169:
1168:
1166:
1165:
1160:
1155:
1149:
1147:
1143:
1142:
1140:
1139:
1134:
1129:
1124:
1119:
1114:
1108:
1106:
1102:
1101:
1099:
1098:
1093:
1088:
1083:
1078:
1073:
1067:
1065:
1061:
1060:
1058:
1057:
1052:
1047:
1042:
1037:
1032:
1026:
1024:
1020:
1019:
1017:
1016:
1011:
1010:
1009:
1004:
999:
989:
984:
979:
974:
968:
966:
959:
955:
954:
951:
950:
948:
947:
942:
940:PlayStation TV
937:
931:
929:
925:
924:
922:
921:
920:
919:
909:
908:
907:
897:
891:
889:
885:
884:
882:
881:
876:
875:
874:
869:
859:
858:
857:
852:
847:
837:
836:
835:
830:
820:
819:
818:
813:
802:
800:
793:
789:
788:
786:
785:
780:
774:
771:
770:
763:
762:
755:
748:
740:
731:
730:
728:
727:
719:
709:
700:
697:
696:
694:
693:
688:
681:
676:
670:
668:
664:
663:
661:
660:
659:
658:
653:
648:
643:
637:Budget ranges
635:
630:
625:
620:
615:
609:
607:
603:
602:
600:
599:
593:
591:
585:
584:
582:
581:
576:
575:
574:
569:
559:
554:
553:
552:
550:Emotion Engine
542:
536:
534:
530:
529:
527:
526:
520:
517:
516:
509:
508:
501:
494:
486:
478:
477:
451:
421:
398:
375:
374:
372:
369:
368:
367:
362:
355:
352:
339:
336:
326:
323:
287:Main article:
284:
281:
256:
255:
246:
245:
244:
235:
234:
233:
232:
231:
229:
226:
215:Call of Duty 3
109:
108:
103:
97:
96:
93:
89:
88:
83:
77:
76:
71:
67:
66:
59:
55:
54:
49:
45:
44:
17:
9:
6:
4:
3:
2:
2043:
2032:
2031:PlayStation 2
2029:
2027:
2024:
2022:
2019:
2017:
2014:
2013:
2011:
1996:
1993:
1991:
1988:
1986:
1983:
1981:
1978:
1976:
1973:
1971:
1968:
1966:
1963:
1961:
1958:
1956:
1953:
1951:
1948:
1946:
1943:
1941:
1938:
1937:
1935:
1931:
1925:
1922:
1920:
1917:
1915:
1912:
1910:
1907:
1905:
1902:
1900:
1897:
1895:
1892:
1890:
1887:
1885:
1882:
1880:
1877:
1875:
1872:
1870:
1867:
1865:
1862:
1860:
1857:
1855:
1852:
1851:
1849:
1845:
1836:
1831:
1829:
1824:
1822:
1817:
1816:
1813:
1801:
1793:
1792:
1789:
1783:
1780:
1778:
1775:
1773:
1770:
1769:
1767:
1763:
1757:
1754:
1752:
1749:
1747:
1744:
1742:
1739:
1737:
1734:
1732:
1729:
1728:
1726:
1724:
1723:Arcade boards
1720:
1710:
1707:
1705:
1702:
1701:
1699:
1695:
1689:
1686:
1684:
1683:
1679:
1677:
1676:
1672:
1671:
1669:
1665:
1659:
1658:
1654:
1652:
1651:
1647:
1645:
1644:
1640:
1638:
1637:
1633:
1631:
1630:
1626:
1624:
1623:
1619:
1618:
1616:
1612:
1609:
1605:
1599:
1596:
1594:
1591:
1589:
1586:
1584:
1581:
1579:
1576:
1575:
1573:
1569:
1559:
1556:
1552:
1549:
1548:
1547:
1544:
1542:
1539:
1537:
1534:
1532:
1529:
1527:
1524:
1522:
1519:
1517:
1514:
1512:
1509:
1508:
1506:
1504:Miscellaneous
1502:
1496:
1493:
1491:
1488:
1486:
1483:
1481:
1478:
1477:
1475:
1471:
1465:
1462:
1460:
1457:
1455:
1452:
1450:
1447:
1445:
1442:
1440:
1437:
1435:
1432:
1431:
1429:
1425:
1422:
1418:
1412:
1409:
1407:
1404:
1402:
1399:
1397:
1394:
1392:
1389:
1387:
1384:
1382:
1379:
1377:
1374:
1372:
1369:
1367:
1364:
1362:
1359:
1357:
1354:
1352:
1349:
1345:
1342:
1341:
1340:
1337:
1336:
1334:
1330:
1320:
1319:BigHit Series
1317:
1315:
1312:
1310:
1307:
1305:
1304:Greatest Hits
1302:
1301:
1299:
1295:
1289:
1286:
1284:
1281:
1279:
1276:
1274:
1271:
1270:
1268:
1264:
1258:
1255:
1253:
1250:
1248:
1245:
1243:
1240:
1238:
1235:
1233:
1230:
1228:
1225:
1223:
1220:
1218:
1215:
1214:
1212:
1210:
1206:
1200:
1197:
1195:
1192:
1190:
1187:
1185:
1182:
1180:
1177:
1176:
1174:
1170:
1164:
1161:
1159:
1156:
1154:
1151:
1150:
1148:
1144:
1138:
1135:
1133:
1130:
1128:
1125:
1123:
1120:
1118:
1115:
1113:
1110:
1109:
1107:
1103:
1097:
1094:
1092:
1089:
1087:
1084:
1082:
1079:
1077:
1074:
1072:
1069:
1068:
1066:
1062:
1056:
1053:
1051:
1048:
1046:
1043:
1041:
1038:
1036:
1033:
1031:
1028:
1027:
1025:
1021:
1015:
1012:
1008:
1005:
1003:
1000:
998:
995:
994:
993:
990:
988:
985:
983:
980:
978:
975:
973:
970:
969:
967:
963:
960:
956:
946:
943:
941:
938:
936:
933:
932:
930:
928:Miscellaneous
926:
918:
915:
914:
913:
910:
906:
903:
902:
901:
898:
896:
895:PocketStation
893:
892:
890:
886:
880:
879:PlayStation 5
877:
873:
870:
868:
867:Main hardware
865:
864:
863:
862:PlayStation 4
860:
856:
853:
851:
850:Main hardware
848:
846:
843:
842:
841:
840:PlayStation 3
838:
834:
833:Main hardware
831:
829:
826:
825:
824:
823:PlayStation 2
821:
817:
816:Main hardware
814:
812:
809:
808:
807:
804:
803:
801:
799:Home consoles
797:
794:
790:
784:
781:
779:
776:
775:
772:
768:
761:
756:
754:
749:
747:
742:
741:
738:
726:
725:
724:PlayStation 3
720:
718:
710:
708:
707:
703:Predecessor:
702:
701:
698:
692:
689:
687:
686:
682:
680:
677:
675:
672:
671:
669:
665:
657:
656:BigHit Series
654:
652:
649:
647:
644:
642:
641:Greatest Hits
639:
638:
636:
634:
631:
629:
626:
624:
621:
619:
616:
614:
611:
610:
608:
604:
598:
595:
594:
592:
590:
586:
580:
577:
573:
570:
568:
565:
564:
563:
560:
558:
557:Expansion Bay
555:
551:
548:
547:
546:
545:Main hardware
543:
541:
538:
537:
535:
531:
525:
522:
521:
518:
514:
513:PlayStation 2
507:
502:
500:
495:
493:
488:
487:
484:
465:
461:
455:
439:
435:
431:
425:
414:September 25,
409:
402:
391:September 25,
386:
380:
376:
366:
363:
361:
358:
357:
351:
349:
345:
338:LAN tunneling
335:
332:
331:WITH NET PLAY
325:Compatibility
322:
320:
319:
314:
313:
308:
304:
295:
290:
280:
277:
275:
269:
266:
250:
239:
225:
223:
222:
217:
216:
211:
210:
205:
204:
199:
198:
192:
189:
185:
181:
176:
174:
170:
166:
162:
157:
155:
151:
147:
143:
139:
135:
131:
130:
129:online gaming
125:
122:
121:
120:PlayStation 2
116:
106:
104:
102:
98:
94:
90:
87:
86:PlayStation 2
84:
82:
78:
72:
68:
65:EU: June 2003
61:JP: July 2001
60:
56:
53:
50:
46:
42:
38:
36:
30:
25:
16:
1979:
1924:Xbox network
1709:Kevin Butler
1680:
1673:
1655:
1648:
1641:
1634:
1627:
1620:
1406:Room for PSP
1395:
1194:Best selling
1184:Downloadable
1163:PS VR2 games
1158:Best-selling
1127:Free-to-play
1122:Best-selling
1091:Best-selling
1050:Downloadable
1040:Best-selling
992:Downloadable
987:Best-selling
722:
704:
683:
628:Online games
623:Best-selling
561:
468:. Retrieved
464:the original
454:
442:. Retrieved
438:the original
433:
424:
412:. Retrieved
401:
389:. Retrieved
379:
341:
330:
328:
316:
310:
300:
278:
270:
262:
219:
213:
207:
201:
195:
193:
177:
158:
153:
149:
145:
127:
118:
112:
70:Discontinued
32:
22:Network Play
15:
1965:MPlayer.com
1884:Game Center
1864:e-Amusement
1704:Polygon Man
1675:Double Life
1449:Dual Analog
1427:Controllers
1420:Accessories
1344:2011 outage
1288:Classics HD
1132:PS VR games
965:PlayStation
806:PlayStation
767:PlayStation
721:Successor:
706:PlayStation
589:Accessories
188:third-party
81:Platform(s)
58:Launch date
2010:Categories
1904:PlayOnline
1859:Battle.net
1751:System 357
1746:System 246
1697:Characters
1578:Net Yaroze
1541:Wonderbook
1516:Link Cable
1396:PS2 online
1309:Essentials
982:Net Yaroze
470:August 11,
410:. BBC News
371:References
154:PS2 Online
1741:System 10
1736:System 12
1614:Magazines
1583:PS2 Linux
1356:FirstPlay
1273:PS Mobile
1257:Cancelled
1199:Cancelled
1137:Cancelled
1096:Cancelled
1055:Cancelled
1014:Cancelled
888:Handhelds
679:HD Loader
444:April 23,
344:XLink Kai
184:Xbox Live
132:or other
48:Developer
1960:Heat.net
1800:Category
1682:Mountain
1511:Multitap
1314:The Best
1297:Reprints
1189:PS minis
792:Consoles
717:Category
685:Mountain
651:The Best
646:Platinum
533:Hardware
354:See also
265:Ethernet
173:Ethernet
161:slimline
1955:GameSpy
1933:Defunct
1854:ALL.Net
1847:Current
1772:Jampack
1765:Related
1593:OtherOS
1473:Cameras
1459:Sixaxis
1411:VidZone
1332:Network
1209:PS Vita
667:Related
228:Adapter
180:SegaNet
165:dial-up
101:Website
1588:GScube
1536:PlayTV
1485:Go!Cam
1480:EyeToy
1045:Online
845:Models
828:Models
811:Models
597:EyeToy
540:Models
140:and a
134:online
126:offer
92:Status
1995:XBAND
1914:Steam
1894:NESYS
1607:Media
1266:Other
958:Games
691:PCSX2
606:Games
283:Games
1598:Zego
1571:Kits
472:2003
446:2016
416:2012
393:2012
218:and
206:and
115:Sony
107:(US)
1252:W–Z
1247:T–V
1237:P–R
1232:M–O
1227:I–L
1222:E–H
1217:A–D
1179:A-Z
1172:PSP
1153:A–Z
1146:PS5
1117:M–Z
1112:A–L
1105:PS4
1086:Q–Z
1081:J–P
1076:D–I
1071:A–C
1064:PS3
1035:L–Z
1030:A–K
1023:PS2
1007:PAL
977:M–Z
972:A–L
935:PSX
618:L–Z
613:A–K
579:PSX
348:LAN
182:or
169:LAN
152:or
117:'s
2012::
1869:EA
1002:NA
997:JP
432:.
224:.
156:.
148:,
1834:e
1827:t
1820:v
1551:2
1242:S
759:e
752:t
745:v
505:e
498:t
491:v
474:.
448:.
418:.
395:.
350:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.