I bought Half Life on Steam a while ago, but eventually lost my save files.
Now that I have installed Steam on a new computer, I would like to resume from where I left off.
Is it possible to skip chapters?
Are there some other things I should do (e.g. giving myself ammo because I’d have none)? How?
This is possible on the PC version by making use of the console which you can open by pressing ~. You can then jump to any level with the
map x console command, where x is the code for the level you wish to jump to. The list of levels (most levels are split to several sections) and console commands to access can be found on GameFAQs:
Black Mesa Inbound c0a0, c0a0a, c0a0b, c0a0c, c0a0d, c0a0e Anomalous Materials c1a0, c1a0a, c1a0b, c1a0c, c1a0d, c1a0e Unforeseen Consequences c1a1, c1a1a, c1a1b, c1a1c, c1a1d Office Complex c1a2, c1a2a, c1a2b, c1a2c, c1a2d "We've Got Hostiles" c1a3, c1a3a, c1a3b, c1a3c, c1a3d Blast Pit c1a4, c1a4b, c1a4d, c1a4f, c1a4g, c1a4i, c1a4j, c1a4k Power Up c2a1, c2a1a, c2a1b On a Rail c2a2, c2a2a, c2a2b1, c2a2b2, c2a2c, c2a2d, c2a2e, c2a2f, c2a2g, c2a2h Apprehension c2a3, c2a3a, c2a3b, c2a3c, c2a3d, c2a3e Residue Processing c2a4, c2a4a, c2a4b, c2a4c Questionable Ethics c2a4d, c2a4e, c2a4f, c2a4g Surface Tension c2a5, c2a5a, c2a5b, c2a5c, c2a5d, c2a5e, c2a5f, c2a5g, c2a5w, c2a5x "Forget About Freeman!" c3a1, c3a1a, c3a1b Lambda Core c3a2e, c3a2, c3a2a, c3a2b, c3a2c, c3a2d, c3a2f Interloper c4a1, c4a1a, c4a1b, c4a1c, c4a1d, c4a1e, c4a1f Gonarch's Lair c4a2, c4a2a, c4a2b Nihilanth c4a3 Conclusion c5a1
You can give yourself weapons and ammo with the following console commands:
give ammo_ARgrenades give ammo_9mmclip give ammo_357 give ammo_9mmbox give ammo_crossbow give ammo_Egonclip give ammo_Gaussclip give ammo_9mmAR give ammo_RPGclip give ammo_mp5grenades give ammo_buckshot give weapon_python give weapon_handgrenade give weapon_tripmine give weapon_snark give weapon_357 give weapon_crossbow give weapon_crowbar give weapon_9mmhandgun give weapon_gauss give weapon_hornetgun give weapon_mp5 give weapon_rpg give weapon_shotgun give item_healthkit (health) give item_suit (HEV suit) impulse 101 Instant (all weapons, full ammo and armor)
Most commands are self-explanatory, comments are inside parentheses (