Valheim Solo Guide for Swamps, Snow Montain and Plains

Always keep one marked portal at home and take resources to build the second right after landing at another island. If you will die, linked portals will help to grab back your loot. You don’t really need an outpost in every new island. Just secure your landing, set workbench and portal, link it with the same at main base. When you are ready to leave the island, “delete” portal with hammer and collect resources back.

Craft mead for anti-poison and anti-frost potions. Hives can be found in abandoned houses in starting biome. Collect queen bees, build fermentation barrel from bronze. First potion for swamps, second for snow biome. Once wolve’s cape is obtained, forget about frost problems.

Bow, small shield and one-handed sword/mace/axe are your best friends. First one lets you deal with half of the enemies before they could get to ya. Second one lets you parry and do increased damage with one-handed (block right before enemy hits you). You can even parry ranged archers. When it comes to close fight, kill enemies one by one with parry.
if you are ok with dodging and stamina control, you can make halberds as a melee weapon. Main attack of the halberd perfectly stunlock single enemies and alternative attack gains you good crowd control. But don’t rely on blocking at all.Always upgrade your bow. Other armor and weapon upgrades are optional, but keep crafting actual tier of equipment (swamps – iron, snow – wolves, plains – black). As for arrows, take simple wooden. You don’t have extra hands to collect everything fast, and good bow with wooden arrows in endgame can kill unawared goblins in two shots. Craft about 200 arrows everytime.

Swamps. Take anti-poison potion right before landing there. You can activate it right after you will be poisoned, don’t waste it just for walking there. Main poison enemies – green jumping jelly things and leeches in the water. Use your bow against both. Also you can raise flooded ground with your hoe and avoid sudden leech death syndrome. Search for crypts located on the swamp shores (stone structures with green fires), collect 10 withered bones to summon the boss. Don’t ignore green growths from the trees: build ladder and chop them with your axe. Three trees should give you enough guck, additional component to make and upgrade lategame bow later, after mining some silver in snow biome.

Snow. Take anti-frost potion, iron pickaxe, then get in your boat and explore the world for really high mountains. You can climb mountains with jumping and hitting attack with pickaxe. Wolves can be tough, cause of their damage and moving speed, so I recommend learning how to parry them with a shield. Try blocking right after they come close enough for your melee attack. Minidragons – shoot, dodge, shoot. If you meet rock golems, ignore them. Seriously, just ignore them and choose another way.
When metal detector goes beep-beep-beep fast, start digging down for 1 meter. Also, don’t forget to scan runestones for boss location and collect pink eggs (you will need 3).

Plains. Deathsquitos can be killed with one precision shot from bow. If it spotted you, just hold block and hit him right after flying bastard rams your shield. Search for fuling settlements, kill them one by one with bow, collect flax and boss totems (5 to summon). Remember, even big green boyz can be parried. As for their shamans, long range fight is strongly recommended.
In worst case you will find yourself running away from angry group of greenskins. Hit and run.
At this moment darkwood brotherhood and swamp buddies are your best friends, do not ignore their help.

Bonemass, swamp boss. Craft iron mace, take anti-poison mead and beat him until his melee attack. Dodge it or run away, then hit again, while he is not in green cloud. Blunt weapons, such as mace, literally destroy him. Also you can go in high mountaints first, mine some obsidian with iron pickaxe, craft frost arrows, and then use them to finish swamp boss from the distance.

Moder, snow boss. Obsidian and fire arrows, good bow. Strafe run, when he hangs in the air. When landed, simply take low-ground and shoot this huge dragoncopter. He can’t hit you with his frost breath, when you are lower, than him. Be aware of spawning wolves and mini-copters. Sometimes it will be better to retreat, kill small enemies, return to boss.

Yagluth, plains boss. Nothing special, craft 100 needle arrows from deathsquitos, cover behind the massive stones in boss arena and you will be fine.