Gleason's Gielinor Guide

Level	New abilities
1		Use enchanted gems Wear spiny helmets (with 5 ) Receive Slayer assignments from Turael in Burthorpe Receive Wilderness Slayer assignments from Krystilia in Edgeville Receive Slayer assignments from Spria in Draynor Village (with A Porcine of Interest completed) Receive Slayer assignments from Mazchna in Canifis (with 20 ) Receive Slayer assignments from Vannaka in Edgeville Dungeon (with 40 ) Receive Slayer assignments from Chaeldar in Zanaris (with 70 and Lost City completed) Receive Slayer assignments from Konar quo Maten in Mount Karuulm (with 75 ) Receive Slayer assignments from Nieve (or Steve with Monkey Madness II completed) in Tree Gnome Stronghold (with 85 )
2	No new abilities unlocked
3	No new abilities unlocked
4	No new abilities unlocked
5		Slay Crawling Hands (with Priest in Peril completed)
6	No new abilities unlocked
7		Slay cave bugs Required to complete Easy Lumbridge & Draynor Diary
8	No new abilities unlocked
9	No new abilities unlocked
10		Wear facemasks Slay cave crawlers Required for Desert Treasure I
11	No new abilities unlocked
12	No new abilities unlocked
13	No new abilities unlocked
14	No new abilities unlocked
15		Wear earmuffs Slay banshees (with Priest in Peril completed) Required for The Curse of Arrav Required to complete Easy Morytania Diary
16	No new abilities unlocked
17		Slay cave slimes
18		Required for Animal Magnetism
19	No new abilities unlocked
20		Slay rockslugs
21	No new abilities unlocked
22		Slay desert lizards Required to complete Medium Desert Diary
23	No new abilities unlocked
24	No new abilities unlocked
25		Wield mirror shields (with 20 ) Slay cockatrices
26	No new abilities unlocked
27	No new abilities unlocked
28	No new abilities unlocked
29	No new abilities unlocked
30		Slay pyrefiends Required for The Slug Menace
31	No new abilities unlocked
32		Slay mogres (with Skippy and the Mogres completed) Required to complete Medium Falador Diary
33		Wield bug lanterns Slay harpie bug swarms
34	No new abilities unlocked
35		Wear Slayer helmets (with 55 and unlocking the ability to assemble with 400 Slayer reward points) Wear witchwood icons Slay wall beasts
36	No new abilities unlocked
37		Wear insulated boots Slay killerwatts
38		Required for A Taste of Hope
39		Use Slayer bells Slay molanisks
40		Slay basilisks Slay sea snakes (with partial completion of Royal Trouble) Slay terror dogs (with The Lair of Tarn Razorlor completed) Required for Rag and Bone Man II Required for Royal Trouble
41	No new abilities unlocked
42		Wear Slayer gloves Slay fever spiders Required for Rum Deal Required to complete Medium Morytania Diary
43	No new abilities unlocked
44		Wear boots of stone Wear File:Boots of brimstone.pngboots of brimstone Slay sulphur lizards and grimy lizards
45		Slay infernal mages
46	No new abilities unlocked
47		Slay brine rats (with partial completion of Olaf's Quest) Required to complete Medium Fremennik Diary
48		Slay Sulphur Nagua Slay Frost Nagua Slay Earthen Nagua Required for Perilous Moons Required for The Heart of Darkness
49	No new abilities unlocked
50		Slay Bloodveld Required for Sins of the Father Required to complete Medium Wilderness Diary Required to complete Hard Karamja Diary Receive Slayer assignments from Duradel in Shilo Village (with 100 and Shilo Village completed)
51		Slay Gryphons and the Shellbane gryphon boss (with 45 and Troubled Tortugans completed) Required for Troubled Tortugans
52		Slay jellies
53	No new abilities unlocked
54		Slay Juvenile custodian stalkers Required for Shadows of Custodia
55		Wield leaf-bladed spears, leaf-bladed swords, and leaf-bladed battleaxes (with 50 ) Wield broad arrows and broad bolts (with 50 ) Wield Slayer's staves (with 50 ) Cast Magic Dart (with 50 ) Slay Turoths
56		Slay Warped Terrorbirds and Warped Tortoises (with The Path of Glouphrie completed) Required for The Path of Glouphrie
57		Slay mutated zygomites
58		Slay cave horrors (with a witchwood icon equipped) Required to complete Hard Morytania Diary
59	No new abilities unlocked
60		Wear nose pegs Wield V's shield (with 40 and partial completion of The Fremennik Exiles) Slay aberrant spectres Slay Basilisk Knights Required for The Fremennik Exiles
61	No new abilities unlocked
62		Slay wyrms Slay lava strykewyrms (with 60 ) Required to complete Hard Kourend & Kebos Diary
63		Slay spiritual rangers
64	No new abilities unlocked
65		Wield amethyst broad bolts Slay dust devils Required to complete Hard Desert Diary
66		Slay Fossil Island Wyverns
67		Slay Mature custodian stalkers
68		Slay spiritual warriors Required to complete Hard Wilderness Diary
69		Required for Monkey Madness II
70		Slay Kurasks Receive Slayer assignments from Mortimer in Wyrmscraig (with 100 and Fallen From Grace partial completed by accessing caverns)
71	No new abilities unlocked
72		Slay Skeletal Wyverns Required to complete Hard Falador Diary
73	No new abilities unlocked
74		Slay venators Required for The Blood Moon Rises
75		Slay gargoyles and the Grotesque Guardians boss
76		Slay Elder custodian stalkers
77		Slay brutal black dragons
78		Slay Aquanites
79	No new abilities unlocked
80		Slay nechryael
81	No new abilities unlocked
82		Slay Ancient Wyverns
83		Slay spiritual mages Required to complete Elite Fremennik Diary Required to complete Elite Wilderness Diary
84		Slay drakes
85		Slay Abyssal demons and the Abyssal Sire boss Required to complete Elite Morytania Diary
86	No new abilities unlocked
87		Slay cave krakens and the Kraken boss
88	No new abilities unlocked
89	No new abilities unlocked
90		Slay dark beasts
91		Slay Cerberus
92		Slay Araxyte and the Araxxor boss
93		Slay smoke devils and the thermonuclear smoke devil boss Required to complete Elite Western Provinces Diary
94	No new abilities unlocked
95		Slay hydras and the Alchemical Hydra boss Required to complete Elite Kourend & Kebos Diary Required to complete Grandmaster Combat Achievements
96	No new abilities unlocked
97	No new abilities unlocked
98	No new abilities unlocked
99		Buy the Slayer cape and hood from Duradel or Kuradal in Shilo Village, and wear them Skill mastery

Slayer/Level up table

Sources & credits